1,2-NAPHTHOXY-DIAZOLE-4-SULFONIC ACID [ 4857-47-0 ]

Specification: conventional index name general specification
Appearance of orange crystallization
Content % p 75
Main content (HPLC) % p 95
Insoluble, % more than 0.1
Free acid (with H2SO4 plan) % acuities 2
Iron ion mg/kg more than 30