US PATENT SUBCLASS 562 / 439
.~.~.~.~ Ureido, guanido, or hydrazine


Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
405  DF  .~.~ Aromatic {13}
433  DF  .~.~.~ Nitrogen bonded directly to carbon of organic radical (e.g., amino acids, etc.) {9}
439.~.~.~.~ Ureido, guanido, or hydrazine


DEFINITION

Classification: 562/439

Ureido, guanido, or hydrazine:

(under subclass 433) Compounds wherein the acid contains the ureido group (N-C(=O) -N), the guanido group (N-C(=N)-N) or the hydrazine group (N-N).

(1) Note. This subclass contains, for example. [figure] [figure]