Shenyang JinAoHai Trading Co., Ltd. [China]

1-Naphthol-5-Sulfonic acid / 5419-77-2 , L-acid best quality,lowest price

1-Naphthol-5-Sulfonic acid / 5419-77-2 , L-acid

Our specification as following:

Appearance :Grey or with slight red powder

Content:60.0%min

Fe Content:100ppm max

SO2 Content:0.5% max

Insoluble residue in water:0.25% max

1-Naphthol-5-Sulfonic acid / 5419-77-2 , L-acid