发明授权
US5633390A Silver halide photographic material containing pyrazolone-pentamethine oxonol dye 失效
含有吡唑啉酮 - 五甲氧基氧杂菁染料的卤化银照相材料

Silver halide photographic material containing pyrazolone-pentamethine
oxonol dye
摘要:
The pyrazolone-pentamethine oxonol compound represented by the formula (Ib): ##STR1## in which A.sup.3 is methyl, ethyl or sulfoethyl; each of Q.sub.6 and Q.sub.7 independently is hydrogen, methyl, ethyl or sulfoethyl; M.sup.5 is sodium or potassium; and M.sup.6 is hydrogen, sodium or potassium.
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