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Ponceau S

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Ponceau S Basic information

Product Name:
Ponceau S
Synonyms:
  • 2,7-Naphthalenedisulfonicacid,3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-,tetrasodiumsalt
  • c.i.acidred112
  • PONCEAU S, SODIUM SALT
  • PONCEAU S
  • LABOTEST-BB LT00847573
  • PONCEAU S (C.I. 27195) FOR MICROSCOPY CE
  • ATX PONCEAU S RED
  • FAST PONCEAU 2B
CAS:
6226-79-5
MF:
C22H12N4Na4O13S4
MW:
760.57
EINECS:
228-319-2
Product Categories:
  • P
  • Stains and Dyes
  • Organics
  • Stains&Dyes, A to
Mol File:
6226-79-5.mol
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Ponceau S Chemical Properties

Density 
1.01 g/mL at 20 °C
refractive index 
n20/D 1.338
storage temp. 
Store at RT.
solubility 
H2O: soluble1mg/mL
form 
Powder/Solid
Colour Index 
27195
color 
Red-brown
PH
9.0 (10g/l, H2O, 20℃)
Water Solubility 
10 g/L
Stability:
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
6226-79-5(CAS DataBase Reference)
EPA Substance Registry System
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, tetrasodium salt (6226-79-5)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-37/39
WGK Germany 
3
RTECS 
QJ6600000
TSCA 
Yes
HS Code 
32041200

MSDS

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Ponceau S Usage And Synthesis

Chemical Properties

red powder

Definition

ChEBI: An organic sodium salt that is the tetrasodium salt of 3-hydroxy-4-({2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl}diazenyl)naphthalene-2,7-disulfonic acid.

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