.gamma.,.gamma.,.gamma.',.gamma.'-Tetramethylthiazolo[5,4-d]thiazole-2,5-dibutyronitrile 32563-71-6 NSC34412 Thiazolo[5,4-d]thiazole-2,5-dibutanenitrile, .gamma.,.gamma.,.gamma.',.gamma.'-tetramethyl- Thiazolo[5,4-d]thiazole-2,5-dibutyronitrile, .gamma.,.gamma.,.gamma.',.gamma.'-tetramethyl-