CHROMOTROPE 2B

C.I.No 16575
2-(4-Nitrophenylazo)chromotropic acid disodium salt ; Acid red 176

Article No.

02829

Grade

Purity

CAS No.

548-80-1

Molecular Formula

C₁₆H₉N₃Na₂O₁₀S₂

Molecular Weight

513.37

H.S. Code

2927.0090

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

Packings

Appearance	Dark green to greenish-brown to brown powder
Absorption maxima in water	512 - 518 nm
Absoptivity (A1%1cm, in water at absorption maxima, on dried subs.)	Min 575.0
Loss on drying (at 110°C)	Max 8.0%

Revision Date : 29-Jun-2023