US PATENT SUBCLASS 504 / 280
.~.~.~.~ 1,2-diazoles (including hydrogenated)

Current as of: June, 1999
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504 /   HD   PLANT PROTECTING AND REGULATING COMPOSITIONS

116  DF  PLANT GROWTH REGULATING COMPOSITIONS (E.G., HERBICIDES, ETC.) {9}
189  DF  .~ Organic active compound containing {19}
209  DF  .~.~ Hetero ring containing {11}
261  DF  .~.~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen {10}
280.~.~.~.~ 1,2-diazoles (including hydrogenated) {2}
281  DF  .~.~.~.~.~> Polycyclo ring system having the diazole ring as one of the cyclos
282  DF  .~.~.~.~.~> Chalcogen or nitrogen bonded directly to ring carbon of the diazole ring

DEFINITION

Classification: 504/280

1, 2-diazoles (including hydrogenated):

(under subclass 261) Compositions in which the five-membered hetero ring has nitrogens in the 1- and 2-positions and carbons in the remaining three positions.

(1) Note. This subclass provides for compounds containing the following ring which may have double bonds between its members: [figure]