| Class 534 | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| This Class 534 is considered to be an integral part of Class 260 (see the Class 260 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 260. | ||
| ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) |
![[List of Pre Grant Publications for class 534 subclass 7]](../as.gif) | ![[List of Patents for class 534 subclass 7]](../ps.gif) | 7 |  Noble gas containing (i.e., He, Ne, Ar, Kr, Xe, or Rn containing) |
| | 10 | Radioactive metal containing (At. No. 43, 61 or 84+; or radioactive isotope of another metal) |
| | 11 |  Actinide series metal (At. No. 89+) |
| | 14 | Technetium containing (At. No. 43; Tc) |
| | 15 | Rare earth containing (At. No. 21, 39, 57-60 or 62-71) |
| | 550 | Diazoamino (e.g., triazenes, etc.) |
| | 551 | Hetero ring containing |
| | 552 | Chalcogen or additional nitrogen bonded directly to the diazoamino group |
| | 553 | Noncarbon atom double or triple bonded and the diazoamino group bonded directly to the same acyclic carbon |
| | 554 | Plural benzene rings bonded directly to the diazoamino group |
| | 555 | Processes |
| | 556 | Diazooxide or diazotate (e.g., -N=N-O-, etc.) |
| | 558 | Diazo or diazonium (e.g., -N=N-C, etc.) |
| | 559 | With preservative or stabilizer |
| | 560 | Hetero ring containing |
| | 561 | Plural diazo or diazonium groups |
| | 562 | Heavy metal or aluminum containing |
| | 563 | Polycyclo ring system having at least three cyclos |
| | 564 | Aldehyde or ketone group containing |
| | 565 | Formation of diazonium group |
| | 566 | Azoxy |
| | 567 | Hetero ring containing |
| | 568 | Azodioxy |
| | 569 | Heavy metal or aluminum containing |
| | 570 | Sulfonic acid group containing (-(0=)S(=O)-OH, wherein H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 572 | Formation of azoxy group |
| | 573 | Azo |
| | 574 | Quaternary azo group containing |
| | 575 | Specified crystalline form |
| | 576 | With preservative or stabilizer |
| | 577 | Liquid crystal (e.g., pleochroic, etc.) |
| | 578 | Formation of azo group by oxidative coupling |
| | 579 | Formation of azo group by simultaneous diazotization and coupling |
| | 580 | Formation of azo group from diazoamino group |
| | 581 | Formation of azo group by coupling diazonium compound with coupling component in presence of an additional organic compound |
| | 582 | Formation of azo group by coupling diazonium compound with coupling component at a specified pH range |
| | 583 | Formation of azo group by coupling diazonium compound with coupling component in presence of ammonia, a Group IIA light metal hydroxide or a Group IA or IIA light metal phosphate |
| | 584 | Formation of azo group by coupling diazonium compound with coupling component in other than stoichiometric proportions |
| | 585 | Formation of azo group by reduction of nitro group |
| | 586 | Formation of azo group from group having nitrogen single bonded to nitrogen |
| | 587 | Formation of azo group directly from nitrogen containing compound by process other than diazotization and coupling |
| | 588 | Process utilizing azo compound as reactant |
| | 589 |  Formation of quaternary ammonium or hydrazinium group |
| | 590 | Ring formation |
| | 591 | Formation of -C(=X)HNH group, wherein X is chalcogen (substitution may be made for hydrogen only) |
| | 592 | Formation of sulfonamide group |
| | 593 | Additional reactant containing phosphorus or sulfur |
| | 594 |  Sulfonic acid group formed or added to the azo reactant (-(O=) S (=O)-OH, wherein H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 595 | Formation of -C(=X)X- ester group, wherein the X's may be the same or diverse chalcogens |
| | 596 | Etherification of hydroxy group |
| | 597 | Replacement of halogen by cyano group |
| | 598 | Replacement of halogen by amino nitrogen |
| | 599 | Hydrolysis |
| | 600 | Reduction of nitro or nitrogen oxide group |
| | 601 | Nitration |
| | 602 | Metallization of the azo reactant in presence of an additional organic compound |
| | 603 | Quaternary ammonium or hydrazinium attached indirectly to an azo group by nonionic bonding |
| | 604 | Hetero ring containing |
| | 605 | The pentavalent nitrogen is a ring member |
| | 606 |  Azo bonded directly to a hetero ring or to a polycyclo ring system having a hetero ring as one of the cyclos |
| | 607 |  The hetero ring contains the pentavalent nitrogen |
| | 608 |  Plural azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 609 | Acyclic carbon bonded directly to the azo group |
| | 610 | Additional hetero ring or polycyclo ring system having a hetero ring as one of the cyclos bonded directly to the azo group |
| | 611 | The hetero ring is one of the cyclos in a polycyclo ring system |
| | 612 | Acyclic -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the hetero ring by nonionic bonding |
| | 613 | Heavy metal or aluminum containing |
| | 614 | Plural azo groups attached indirectly to each other by nonionic bonding |
| | 615 | Plural nitrogens bonded directly to the same alkylene chain (e.g., diamino alkylene, etc.) |
| | 616 | Nitrogen oxide, other than as nitro or nitroso, containing |
| | 617 | Fiber- or substrate-reactive azo compound |
| | 618 | Formazan containing (i.e., HNH-N=CH-N=NH, wherein substitution may be made for hydrogen only) |
| | 619 | Heavy metal or aluminum containing |
| | 620 | Halogen attached directly to a hetero ring or to an alicyclic ring by nonionic bonding |
| | 621 | Stilbene containing |
| | 622 | The hetero ring is six-membered and contains at least two nitrogens |
| | 623 | Diverse azo moieties bonded to the same metal |
| | 624 | At least two such hetero rings attached indirectly to each other by nonionic bonding |
| | 625 | Plural azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 626 | Chalcogen or carbon bonded directly to the six-membered hetero ring and is between the hetero ring and the azo group |
| | 627 | Plural halogens attached directly to the hetero ring by nonionic bonding |
| | 628 | Diverse hetero ring containing |
| | 629 | Alkylene, alkenyl or alkenylene bonded directly to sulfonyl or sulfonamide, which sulfonyl or sulfonamide is between a ring and the alkylene, alkenyl or alkenylene |
| | 630 | Halogen attached directly to a hetero ring or to an alicyclic ring by nonionic bonding |
| | 631 | Stilbene containing |
| | 632 | The hetero ring is six-membered and contains at least two nitrogens |
| | 633 | Polycyclo ring system having the hetero ring as one of the cyclos |
| | 634 | At least two such hetero rings attached indirectly to each other by nonionic bonding |
| | 635 | Additional hetero ring containing |
| | 637 | Plural azo groups attached indirectly to each other by nonionic bonding |
| | 638 | The hetero ring and benzene ring, to which an azo group is bonded directly, bonded directly to the same nitrogen |
| | 639 | Aziridine containing (including unsaturated) |
| | 640 | Alkylene, alkenyl, alkenylene, alkynyl or alkynylene attached directly or indirectly to a ring by nonionic bonding |
| | 641 | Alkylene, alkenyl or alkenylene bonded directly to sulfonyl or sulfonamido, which sulfonyl or sulfonamido is between a ring and the alkylene, alkenyl or alkenylene |
| | 642 | The alkylene, alkenyl or alkenylene and the ring are both bonded directly to the same sulfonyl group |
| | 643 | Alkylene, alkenyl or alkenylene bonded directly to carboxamido, urea or -C(=X)-, wherein X is chalcogen, which group is between a ring and the alkylene, alkenyl or alkenylene |
| | 644 | Alkylene, alkenyl or alkenylene and a ring bonded directly to the same chalcogen or to plural chalcogens which are bonded directly to each other |
| | 645 | Plural sulfonyl groups bonded directly to same amino nitrogen (e.g., sulfonylaminosulfonyl, etc.) |
| | 646 | Sulfonyl and carbonyl bonded directly to the same amino nitrogen (e.g., sulfonylaminocarbonyl, etc.) |
| | 647 | Plural amino nitrogens bonded directly to the same sulfonyl (e.g., aminosulfonylamino, etc.) |
| | 649 | Alkyl chain having at least eight carbons specified bonded directly to a ring |
| | 650 | Sulfonyl or -C(=X)-, wherein X is chalcogen, between a ring and an alkyl chain having at least eight carbons specified |
| | 652 | Formazan containing (i.e., HNH-N=CH-N=NH, wherein substitution may be made for hydrogen only) |
| | 653 | Polycyclo carbocyclic ring system having at least three cyclos |
| | 654 | The polycyclo ring system consists of three six-membered cyclos and has plural oxygens bonded directly thereto |
| | 655 | Hetero ring containing |
| | 656 | At least two such ring systems having plural oxygens bonded directly thereto |
| | 657 | The polycyclo ring system has no azo group bonded directly thereto |
| | 658 | Chalcogen double bonded directly to the polycyclo ring system |
| | 659 | Bicyclo carbocyclic ring system consisting of a six-membered ring and a five-membered ring (e.g., indane, etc.) |
| | 660 | Hydroxy and carbonyl of -COO- bonded directly to a monocyclic benzene ring (H or hydroxy may be replaced by a substituted or unsubstituted ammonium ion or a metal) |
| | 661 | Heavy metal or aluminum containing |
| | 662 | Hetero ring containing |
| | 663 | Plural azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 664 | Hetero ring containing |
| | 665 | Azo bonded directly to the hetero ring or to a polycyclo ring system which contains the hetero ring as one of the cyclos |
| | 666 | At least three azo groups attached indirectly to each other by nonionic bonding |
| | 667 | Plural monocyclic benzene rings, each having hydroxy and carbonyl of -COO- bonded directly thereto |
| | 668 | Additional monocyclic benzene ring having plural hydroxy groups, hydroxy and nitrogen, or plural nitrogens bonded directly thereto, wherein the nitrogen is other than as nitro, nitroso or azo |
| | 669 | Additional -C(=X)-, wherein X is chalcogen |
| | 670 | Two azo groups attached indirectly to each other by nonionic bonding |
| | 671 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 674 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 676 | Plural -HNH groups or -OH and -HNH bonded directly to a monocyclic benzene ring (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 677 | Plural azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 678 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 681 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of -OH may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 682 | Plural hydroxy groups or esters thereof bonded directly to a monocyclic benzene ring (H of hydroxy may be replaced by a substituted or unsubstituted ammonium ion or metal) |
| | 683 | Azo bonded directly to the benzene ring |
| | 684 | Heavy metal or aluminum containing |
| | 685 | At least three azo groups attached indirectly to each other by nonionic bonding |
| | 686 | Hetero ring containing |
| | 687 | Plural monocyclic benzene rings, each having plural hydroxy groups or esters thereof bonded directly thereto |
| | 688 | Two azo groups attached indirectly to each other by nonionic bonding |
| | 689 | Stilbene containing |
| | 692 | Heavy metal or aluminum containing |
| | 693 | Amine salt |
| | 694 | Arsenic containing |
| | 695 | Azo moiety and moiety which contains acyclic -CH=N- group bonded to the same metal |
| | 696 | Diverse azo moieties bonded to the same metal |
| | 697 | Hetero ring containing |
| | 699 | Plural azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 700 | Azo bonded directly to an acyclic carbon which is bonded directly to two acyclic carbons, each of which is double or triple bonded to an atom |
| | 701 | Hetero ring containing |
| | 702 | Polycyclo ring system containing the hetero ring as one of the cyclos |
| | 707 | Azo bonded directly to the hetero ring |
| | 713 | Benzene ring containing |
| | 714 | At least three azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 715 | Plural monocyclic benzene rings attached directly to each other by nonionic bonding and are between azo groups |
| | 716 | Two azo groups in the same azo moiety attached indirectly to each other by nonionic bonding |
| | 717 | Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 718 | Plural monocyclic benzene rings attached directly or indirectly to each other by acyclic nonionic bonding and are between the azo groups |
| | 719 | Plural monocyclic benzene rings attached directly or indirectly to each other by acyclic nonionic bonding and are between the azo groups |
| | 720 | Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 722 | Plural bicyclo carbocyclic ring systems bonded directly to the azo group |
| | 723 | Sulfonyl bonded directly to amino nitrogen (e.g., sulfonamide, etc.) |
| | 724 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of -OH may be replaced by the ammonium ion or a metal) |
| | 726 | Boron or silicon containing |
| | 727 | Phosphorus attached indirectly to an azo group by nonionic bonding |
| | 728 | Amine salt |
| | 729 | Chain containing at least fifteen alkylene oxide groups |
| | 730 | Sulfonic acid ester group containing |
| | 732 | Nitrogen, other than as azo, and chalcogen or -C(=X)X- bonded directly to a -C(=X)- group, wherein the X's may be the same or diverse chalcogens (e.g., carbamic, allophanic, etc.) |
| | 734 | Halogen bonded directly to sulfur or to a -C(=X)- group, wherein X is chalcogen |
| | 735 | Containing acyclic -XCN or -NCX, wherein X is chalcogen (e.g., thiocyanato, isocyanato, etc.) |
| | 736 | Thiosulfuric acid group containing (-S-(O=)S(=O)-OH, wherein H of the -OH may be replaced by the ammonium ion or Group IA or IIA light metal) |
| | 737 | Cyano and carbon bonded directly to acyclic nitrogen |
| | 738 | Acyclic chain which contains -CH=N- (substitution may be made for hydrogen only) |
| | 739 | Azo bonded directly to an acylic carbon which is bonded directly to two acyclic carbons, each of which is double or triple bonded to an atom |
| | 740 | Hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to an azo group |
| | 741 | Hetero ring attached indirectly to an azo group by nonionic bonding |
| | 742 | The acyclic carbon, to which the other two acyclic carbons are bonded, is between the hetero ring and the azo group |
| | 743 | At least three azo groups attached indirectly to each other by nonionic bonding |
| | 744 | Two azo groups attached indirectly to each other by nonionic bonding |
| | 745 | Each azo group is bonded directly to an acyclic carbon which is bonded directly to two acyclic carbons, each of which is double or triple bonded to an atom |
| | 749 | Sulfonyl bonded directly to nitrogen |
| | 750 | Having -C(=X)-, wherein X is chalcogen, attached indirectly by nonionic bonding to the acyclic carbon to which the other two acyclic carbons are bonded |
| | 751 | Hetero ring containing |
| | 752 | Polycyclo ring system having a hetero atom shared by at least two rings or at least two hetero atoms which are not members of the same ring |
| | 753 | Azo bonded directly to the hetero ring or to a polycyclo ring system which contains the hetero ring as one of the cyclos |
| | 754 | At least three azo groups attached indirectly to each other by nonionic bonding |
| | 755 | Additional hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to an azo group |
| | 756 | Two azo groups attached indirectly to each other by nonionic bonding |
| | 757 | Additional hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to an azo group |
| | 758 | Both hetero rings or polycyclo ring systems are between the azo groups |
| | 759 | Plural monocyclic benzene rings, each bonded directly to an azo group, are between the azo groups |
| | 761 | Both azo groups are bonded directly to the hetero ring or to the polycyclo ring system |
| | 762 | Polycyclo ring system having at least three cyclos, at least one of which is a hetero ring |
| | 763 | Bicyclo carbocyclic ring system |
| | 764 | Additional ring bonded directly to the hetero ring or to the polycyclo ring system |
| | 765 | Additional hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to the azo group |
| | 766 | The hetero ring is six-membered and contains nitrogen (e.g., pyridine, etc.) |
| | 767 | The hetero ring contains at least two nitrogens (e.g., pyrimidine, etc.) |
| | 768 | The hetero ring is in a bicyclo ring system (e.g., quinoline, benzomorpholine, etc.) |
| | 769 | Pyrazole (including hydrogenated) |
| | 770 | The hetero ring is six-membered and consists of one nitrogen and five carbons (e.g., pyridine, etc.) |
| | 771 | Acyclic oxygen bonded directly to the hetero ring |
| | 772 | Plural acyclic chalcogens bonded directly to the hetero ring at the two positions adjacent to the ring nitrogen |
| | 773 | Plural acyclic nitrogens, other than as nitro, nitroso or azo, bonded directly to the hetero ring at the two positions adjacent to the ring nitrogen |
| | 774 | Additional hetero ring attached indirectly to the azo group by nonionic bonding |
| | 776 | A ring and the additional hetero ring or a polycyclo ring system which contains the additional hetero ring as one of the cyclos are bonded directly to the same nitrogen |
| | 778 | Bicyclo carbocyclic ring system bonded directly to the azo group |
| | 779 | The bicyclo carbocyclic ring system is between the azo group and an additional carbocyclic ring |
| | 780 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of the -OH may be replaced by the ammonium ion or Group IA or IIA light metal) |
| | 781 | Sulfonic acid group containing (-(O=)S(=O)-OH, wherein H of the -OH may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 782 | The hetero ring is one of the cyclos in a polycyclo ring system |
| | 783 | Additional sulfonyl containing |
| | 785 | Containing acyclic -C(=X)-, wherein X is chalcogen |
| | 787 | The hetero ring is one of the cyclos in a polycyclo ring system |
| | 788 | The hetero ring consists of sulfur, nitrogen and carbon (e.g., benzothiazole, etc.) |
| | 789 | Chalcogen double bonded directly to the hetero ring |
| | 790 | The hetero ring is five-membered and consists of one nitrogen and four carbons (e.g., indole, etc.) |
| | 791 | Carbocyclic ring bonded directly to the hetero ring or to the polycyclo ring system which contains the hetero ring |
| | 794 | Carbocyclic ring attached indirectly to the azo group by nonionic bonding |
| | 795 | The hetero ring is five-membered and contains at least one atom each of sulfur, nitrogen and carbon |
| | 796 | At least three azo groups attached indirectly to each other by nonionic bonding |
| | 797 | Two azo groups attached indirectly to each other by nonionic bonding |
| | 798 | Plural carbocyclic rings bonded directly to the azo group |
| | 805 | Exactly five or exactly six azo groups attached indirectly to each other by nonionic bonding |
| | 806 | Exactly four azo groups attached indirectly to each other by nonionic bonding |
| | 807 | Plural nitrogens bonded directly to the same -C(=X)- group, wherein X is chalcogen (e.g., urea, thiourea, etc.) |
| | 808 | Benzidine containing |
| | 809 | Exactly three azo groups attached indirectly to each other by nonionic bonding |
| | 810 | Containing -C(=X)-, wherein X, is chalcogen or nitrogen (e.g., carbonyl, etc.) |
| | 813 | Benzidine containing |
| | 814 | Hydroxy and nitrogen, other than as nitro, nitroso or azo, bonded directly to the same bicyclo ring system (H of hydroxy may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 815 | Hydroxy bonded directly to a bicyclo ring system (H of hydroxy may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 816 | Exactly two azo groups attached indirectly to each other by nonionic bonding |
| | 817 | Plural benzene rings bonded directly to the same urea or thiourea group and are between the azo groups |
| | 819 | Plural benzene rings bonded directly to the same carboxamide or sulfonamide group and are between the azo groups |
| | 821 | Plural benzene rings bonded directly to the same chalcogen or -C(=X)- group, wherein X is chalcogen, and are between the azo groups |
| | 822 | Plural benzene rings bonded directly to each other and are between the azo groups |
| | 823 | Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 824 | Nitrogen, other than as nitro, nitroso or azo, attached indirectly to azo by nonionic bonding |
| | 827 | Hydroxy bonded directly to a bicyclo ring system which is between the azo groups (H of hydroxy may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) |
| | 829 | Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 830 | Hydroxy and the -C(=X)- are bonded directly to the same bicyclo ring system (H of hydroxy may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) |
| | 831 | Plural benzene rings bonded directly to each azo group |
| | 832 | At least one of the benzene rings is part of a bicyclo ring system |
| | 833 | Each of the benzene rings is part of a bicyclo ring system |
| | 834 | Hydroxy bonded directly to the bicyclo ring system (H of hydroxy may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 835 | Plural bicyclo ring systems, each having hydroxy bonded directly thereto |
| | 836 | Additional hydroxy or nitrogen, other than as nitro, nitroso or azo, bonded directly to the bicyclo ring system |
| | 837 | Sulfonic acid group bonded directly to the bicyclo ring system (-(O=)S(=O) OH, wherein H of the -OH may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 838 | Exactly one azo group containing or azo attached indirectly to an additional azo group by ionic bonding |
| | 839 | Plural benzene rings bonded directly to the azo group |
| | 840 | Each of the benzene rings is part of a bicyclo ring system |
| | 841 | Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 842 | Hydroxy bonded directly at the 2-position of the bicyclo ring system (H of hydroxy may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 843 | Each of the benzene rings is monocyclic |
| | 844 | Sulfonyl containing |
| | 845 | Oxygen bonded directly to the sulfonyl group (e.g., sulfonic acid, etc.) |
| | 847 | The sulfonyl is part of a sulfonamide group (-(O=)S(=O)HNH, wherein substitution may be made for hydrogen only) |
| | 848 | Containing -C(=X)-, wherein X is chalcogen |
| | 850 | Containing -C(=X)-, wherein X is chalcogen |
| | 851 | The -C(=X)- is bonded directly to one of the benezene rings |
| | 852 | The -C(=X)- is in a -C(=X)X- group, wherein the X's may be the same or diverse chalcogens |
| | 853 | The -C(=X)X- is in a -C00H group (H of OH may be replaced by the ammonium ion or a Group IA or IIA light metal) |
| | 854 | Additional -C(=X)- bonded directly to nitrogen, which nitrogen is bonded directly to a ring |
| | 855 | Chalcogen, having no direct bond to a ring, attached directly by a single bond to acyclic carbon |
| | 856 | Nitrogen, other than as nitro or nitroso, attached indirectly to the azo group by nonionic bonding |
| | 860 | Acyclic -C(=X)- containing, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 861 | Hydroxy bonded directly to a bicyclo ring system (H of hydroxy may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) |
| | 862 | Nitrogen bonded directly to the -C(=X)- group (e.g., carboxamide, etc.) |
| | 863 | The -C(=X)- is bonded directly to the bicyclo ring system |
| | 864 |  Sulfonyl containing |
| | 865 | Additional acyclic -C(=X)- group |
| | 868 | Additional amino nitrogen |
| | 869 | Plural oxygens bonded directly to the same monocyclic benzene ring |
| | 870 | Halogen, acyclic carbon, the azo group and an additional halogen or acyclic carbon, all bonded directly to the same benzene ring |
| | 871 | Acyclic carbon, carboxamide and chalcogen or an additional acyclic carbon, all bonded directly to the same benzene ring |
| | 872 | The nitrogen is additionally bonded directly to the bicyclo ring system |
| | 874 | The -C(=X)- is bonded directly to the bicyclo ring system |
| | 875 | Nitrogen, other than as nitro or nitroso, attached indirectly to the azo group by nonionic bonding |
| | 876 | Oxygen bonded directly to carbon |
| | 881 | Sulfonyl and the nitrogen bonded directly to the same bicyclo ring system |
| | 882 | Oxygen double bonded directly to sulfur |
| | 885 | Benzene ring bonded directly to the azo group |
| | 886 | Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) |
| | 887 | Purification or recovery |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| DIGESTS | ||
| | DIG1 | MIXTURES OF AZO COMPOUNDS |
| | DIG2 | AZO COMPOUNDS CONTAINING CHAINS OF EIGHT OR MORE CARBON ATOMS NOT PROVIDED FOR ELSEWHERE IN THIS CLASS |
| | DIG3 | POLYMERIC AZO COMPOUNDS OR AZO COMPOUNDS CONTAINING POLYMERIC MOIETIES |
| | DIG4 | AZO COMPOUNDS WHICH ARE LAKES |
| | DIG5 | AZO COMPOUNDS HAVING UTILITY OTHER THAN AS DYES |
| | DIG6 | AZO COMPOUNDS CONTAINING -N(O)-N=, -N=S, OR -SO2N3 GROUPS |
| | DIG7 | AUTOMATIC AND/OR CONTINUOUS TEMPERATURE CONTROL IN THE PREPARATION OF AZO COMPOUNDS |
| | DIG8 | ELIMINATION OF GROUPS DURING THE PREPARATION OF AZO COMPOUNDS |
| | DIG9 | AZO COMPOUNDS CONTAINING TERNARY SULFONIUM GROUPS |
| | DIG10 | AZO COMPOUNDS CONTAINING FORMALDEHYDE REACTION PRODUCT AS THE COUPLING COMPONENT |