phenyl j acid-小9体育直播下载安装苹果

intermediate

phenyl j acid

c.a.s. no.: 119-40-4

chemical formula: c16h13no4s  

molecular weight: 315.343

chemical name:

4-hydroxy-7-(phenylamino)-2-naphthalenesulfonic acid

7-anilino-4-hydroxy-2-naphthalenesulfonic acid

119-40-4
 

appearance

grey-white powder

grey-white powder

coupling value

93% min.

90% min.

insoluble matter

0.1% max.

0.15% max.

free j acid

0.5% max.

1% max.

free aniline

0.2% max.

0.4% max.

bis j acid

0.8% max.

2% max.

hplc purity

97% min.

95% min.

packing

25 kg/500kg woven bag, 100kg iron drum



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