2 (3-Amino-phenylsulfonamido)-naphtalene-6,8-disufonic acid (CAS no.143683-20-9)

2 (3-Amino-phenylsulfonamido)-naphtalene-6,8-disufonic acid - specification

PRODUCT CODE	P053
NAME	2 (3-Amino-phenylsulfonamido)-naphtalene-6,8-disufonic acid
CAS NO	143683-20-9
FORMULA	C₁₆H₁₄N₂O₈S₃
MOL.WT.	458.5
STRUCTURE
FORM	Off-White Moist Cake
ASSAY	70% Min^m.
HPLC ANALYSIS	2(3-Nitro/2(4-Nitro-phenylsulfonamido)- 0.5 % Max^m. Naphtalene-6,8-disufonic acid 2(4-Amino-phenylsulfonamido)-naphtalne- 1.0 % Max^m. 6,8-disufonic acid Other impurities, total 2.5 % Max^m.
IRON CONTENT	100 PPM Max^m.
INSOLUBLES	0.5% Max^m.