J Acid - dd

"J Acid
Chemical Name: 2-Amino-5-Naphthol-7-Sulfonic Acid; 7-Amino-4-hydroxy-2-naphthalene sulphonic acid
Appearance: Grey to light brown powder;
Molecular Formula: C10H9NO4S
M. W: 239.25
CAS No.: 87-02-5
Specifications:
Purity (J acid):90%min
γ Acid:1.5%
Moisture:1.00%
Insolubles: 0.5%
Use: Used as azo medium. Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS.
Package: 25kg-plastic-woven bag lined with a plastic bag inside or as per customer's request."