3,3-dicyanomethylidene-2,3-dihydrothiophen -1,1-dioxide...

Details 3,3-dicyanomethylidene-2,3-dihydrothiophen -1,1-dioxide... 3,3-dicyanomethylidene-2,3-dihydrothiophen -1,1-dioxide...

C - Chemistry, Metallurgy

09

B

8/1, 260/277.1,

C09B 57/00 (2006.01) C07D 333/60 (2006.01) C09B 23/01 (2006.01) C09B 23/04 (2006.01) D06P 1/00 (2006.01)

Patent

CA 1140551

Abstract of the Disclosure The present invention relates to disperse dyes containing a group of formula I, Image (I) in which R1 is arylene. their production and intermediates therefor.

332603

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