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4-Nitro-4'-aminostilbene-2,2'-disulfonic acid

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4-Nitro-4'-aminostilbene-2,2'-disulfonic acid Basic information

Product Name:
4-Nitro-4'-aminostilbene-2,2'-disulfonic acid
Synonyms:
  • 4-amino-4’-nitro-2,2’-stilbenedisulfonicacid
  • 2-(2-sulfo-4-nitrostyryl)-5-aminobenzenesulfonic acid
  • Semi DAS
  • ANSDACID
  • 4-AMINO-4''-NITROSTILBENE-2,2''-DISULFONIC ACID, TECH. 80%
  • 5-Amino-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzene-1-sulfonic acid
  • 5-amino-2-[2-(4-nitrophenyl)ethenyl]cyclohexa-2,4-diene-1,1-disulfonic acid
  • -disulfonic acid
CAS:
119-72-2
MF:
C14H12N2O8S2
MW:
400.38
EINECS:
204-346-5
Mol File:
119-72-2.mol
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4-Nitro-4'-aminostilbene-2,2'-disulfonic acid Chemical Properties

Melting point:
>300°C
Density 
1.5746 (rough estimate)
refractive index 
1.6900 (estimate)
pka
-1.31±0.45(Predicted)
Water Solubility 
Soluble in water.
CAS DataBase Reference
119-72-2(CAS DataBase Reference)
EPA Substance Registry System
Benzenesulfonic acid, 5-amino-2-[2-(4-nitro-2-sulfophenyl)ethenyl]- (119-72-2)
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Safety Information

Risk Statements 
20/21/22-36/37/38
Safety Statements 
26-36/37/39
RTECS 
WJ6100000
TSCA 
Yes

MSDS

  • Language:English Provider:ALFA
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4-Nitro-4'-aminostilbene-2,2'-disulfonic acid Usage And Synthesis

Uses

4-Nitro-4''-aminostilbene-2,2''-disulfonic Acid is used as a reactant in the synthesis of triazine-containing asymmetrical fluorescent brighteners.

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