US PATENT SUBCLASS 562 / 434
.~.~.~.~ Nitro or nitroso

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}
434.~.~.~.~ Nitro or nitroso {3}
435  DF  .~.~.~.~.~> Plural rings {1}
437  DF  .~.~.~.~.~> Plural nitrogens
438  DF  .~.~.~.~.~> Halogen

DEFINITION

Classification: 562/434

Nitro or nitroso:

(under subclass 433) Compounds wherein the acid contains the nitro group (-NO2) or the nitroso group (-NO) bonded to carbon.

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