4-Amino-4'-nitrostilbene-2,2'-disulfonic acid disodium salt Structure

4-Amino-4'-nitrostilbene-2,2'-disulfonic acid disodium salt

Chemical Properties

Melting point >88°C (dec.)
storage temp.  Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility  Methanol (Slightly), Water (Slightly)
form  Solid
color  Red-Brown
Stability Temperature Sensitive - Recommended Storage at -20°C
CAS DataBase Reference 6634-82-8
EPA Substance Registry System Benzenesulfonic acid, 5-amino-2-[2-(4-nitro-2-sulfophenyl)ethenyl]-, disodium salt (6634-82-8)

Safety

Symbol(GHS) Exclamation Mark (GHS07)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P233-P260-P261-P264-P271-P280-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501
TSCA  TSCA listed
HS Code  2921.49.5000
NFPA 704:
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