US PATENT SUBCLASS 558 / 247
.~.~.~.~ Alkyl and hydrogen bonded directly to the -S-C(=S)O- group, wherein the hydrogen may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal (e.g., sodium ethyl xanthate, etc.)

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558 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
230  DF  .~ Esters having the thiocarboxylate group, -C(=X)X-, wherein the X's are the same or diverse chalcogens, with at least one X being sulfur, and wherein the single bonded X is bonded directly to an additional carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon {5}
243  DF  .~.~ Esters having the -X-C(=X)X- group, wherein the X's are the same or diverse chalcogens and at least one X is sulfur, and wherein one of the single bonded X's is bonded directly to carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon (e.g., thiocarbonates, etc.) {3}
245  DF  .~.~.~ The -X-C(=X)X- is -S-C(=S)O- (e.g., xanthates, etc.) {2}
247.~.~.~.~ Alkyl and hydrogen bonded directly to the -S-C(=S)O- group, wherein the hydrogen may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal (e.g., sodium ethyl xanthate, etc.)

DEFINITION

Classification: 558/247

(under subclass 245) Compounds wherein the -S-C(=S)O- group is bonded directly to one alkyl group and to hydrogen, which hydrogen may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]