US PATENT SUBCLASS 534 / 615
.~.~.~ Plural nitrogens bonded directly to the same alkylene chain (e.g., diamino alkylene, etc.)

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

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
573  DF  .~ Azo {51}
603  DF  .~.~ Quaternary ammonium or hydrazinium attached indirectly to an azo group by nonionic bonding {4}
615.~.~.~ Plural nitrogens bonded directly to the same alkylene chain (e.g., diamino alkylene, etc.)

DEFINITION

Classification: 534/615

(under subclass 603) Compounds in which at least two nitrogens are bonded directly to the same alkylene chain.

(1) Note. An example of a compound provided for herein is:

[figure]