CAS: 119-72-2; 5-Amino-2-[2-(4-Nitro-2-Sulfophenyl)Ethenyl]Benzenesulfonic Acid

相似化合物

162705-07-9 621-96-5 6634-82-8

上下游产品

4,4'-dinitrostilbene 2,2'-disulfonic acid 6,6'-(ethane-1,2-diyl)bis(3-aminobenzenesuIfonic acid) 4,4'-diaminostilbene-2,2'-disulfonic acid

5,5'-二硝基二苯乙烯-2,2'-二磺酸置于sodium Hydrogen Sulfide体系中,用 N,N-二甲基甲酰胺 用作溶剂,化学反应 2.5H,反应生成4-硝基-4'-氨基二苯-2,2'-二磺酸
参考文献:一种活性荧光黄染料及其制备方法和应用
标题:一种活性荧光黄染料及其制备方法和应用
摘要:本发明公开了一种活性荧光黄染料及其制备方法和应用,所述活性荧光黄染料的结构如通式(ⅰ)所示.本发明提供的活性荧光黄染料具有非常好的色牢度,固着率高,与纤维结合稳定性好,用在染棉,麻,人造棉等纤维素纤维上,具有优异的鲜艳度.式(I)中:X为cl或f;N为1或2;M为h或碱金属.R选自下列之一:H,

专利信息

专利号:US-4169832-A
优先权日:1975-09-05
标题 :Disazo and trisazo intermediates for polyazo dyes containing a stilbenyl or 2,2'-disulfostilbenyl radical
发明人：VOGEL CLAUDE; WICKI HEINZ
权利人:SANDOZ AG
摘要:Disclosed are compounds of the formula, ##STR1## wherein THE X's are the same and are hydrogen or --SO 3 M, n Y is hydrogen, C 1-4 alkyl, C 1-4 alkoxy, hydroxy, halogen, --COOM or --SO 3 M, n K 1 and K 2 are the same or different and are both radicals of a coupling component, n Either A 1 is --SO 3 M and one of B 1 and C 1 is --SO 3 M, the other being hydrogen, n Or A 1 and C 1 are both hydrogen and B 1 is --SO 3 M, and n M is hydrogen or a non-chromophoric cation, their production and use in dyeing anionic dyeable substrates, for example, natural and regenerated cellulose, natural and synthetic polyamides, polyurethanes, polypropylene modified to contain basic groups, anodized aluminum, paper and, particularly, leather. The dyes are well-soluble in water, possess good resistance to acid, have relatively high substantivity especially to paper and leather and give good penetration dyeings with leather. n Compounds of the formula ##STR2## wherein Q is --NH 2 , --NO 2 , acylamino or K 3 --Nâ•?N--, n wherein K 3 is a coupling component radical free of diazotizable amino groups, n Q is --NH 2 , --NO 2 , acylamino or --Nâ•?N--K 4 , n wherein K 4 is a coupling component radical free of diazotizable amino groups, n with the proviso that when Q is K 3 --Nâ•?N--, Q' is amino, nitro or acylamino, and n A 1 , b 1 , c 1 , each X and Y are as defined above, are useful as intermediates in the synthesis of the polyazo cmpounds.

专利号:CN-108586296-B
优先权日:2018-05-16
标题:A kind of continuous synthesis method of p-nitrotoluene-o-sulfonic acid