Description: 534 organic compounds -- part of the class 532-570 series / 534 organic compounds -- part of the class 532-570 series/() organic compounds (class 532, subclass 1) (573) azo (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
Hierarchy/Derived subclasses
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Patent Apps in 534/662
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