| 摘要 |
1280016 Cyanine dyes FUJI PHOTO FILM CO Ltd 12 Sept 1969 [12 Sept 1968] 45170/69 Heading C4P [Also in Division G2] Cyanine dyes for sensitizing silver halide emulsions are of formula (in which Z and Z<SP>1</SP> are each S or Se; R is C 2 H 5 , n-C 3 H 7 , n-C 4 H 9 or allyl; R<SP>1</SP> is y-sulphopropyl, y-sulphobutyl, 8-sulphobutyl, #-carboxybutyl or #-carboxypentyl; X is an anion; n is 0 or 1).
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