C.A.S. No.: 130-13-2

Chemical Formula: C₁₀H₈NNaO₃S

Molecular Weight: 245.23

UN No. 1759 Class 8 (Corrosive)

Chemical name:

4-amino-1-naphthalenesulfonic acid, monosodium salt;

1-amino-4-naphthalenesulfonic acid, monosodium salt;