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3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt
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3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt

CAS: 6226-79-5

Ref. 3D-FH46942

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Estimated delivery in United States, on Thursday 23 May 2024

Product Information

Name:
3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt
Synonyms:
  • Ponceau SCI 27195
  • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:4)
  • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, tetrasodium salt
  • 3-Hydroxy-4-[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid, tetrasodium salt
  • Acid red 112
  • Ponceau Red S
  • Ponceau S Extra
  • Ponceau S solution
  • Tetrasodium 3-Hydroxy-4-(2-Sulphonato-4-(4-Sulphonatophenylazo)Phenylazo)Naphthalene-2,7-Disulphonat
  • tetrasodium 3-hydroxy-4-[(E)-{2-sulfonato-4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]naphthalene-2,7-disulfonate
  • See more synonyms
Description:

3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt is a chemical compound that has been used in the diagnosis of proteinuria. It reacts with the α1-acid glycoprotein to form a ponceau dye. The 3HSA can be detected by fluorescence probe, which binds to the sulfonate group on the dye. The reaction mechanism of 3HSA is shown below:

3HSA + α1AG → ponceau dye + H+ + AG

The chemical properties of 3HSA are as follows:

pK = 12.6
logP = 2.6
Baume = 13.6
Tm = -5°C
ΔG° (298 K) = -0.8 kJ/mol

Brand:
Biosynth
Long term storage:
Notes:

Chemical properties

Molecular weight:
760.57 g/mol
Formula:
C22H12N4O13S4Na4
Purity:
Min. 95%
Color/Form:
Red Powder
MDL:
Melting point:
Boiling point:
Flash point:
Density:
Concentration:
EINECS:
Merck:
HS code:

Hazard Info

UN Number:
EQ:
Class:
H Statements:
P Statements:
Forbidden to fly:
Hazard Info:
Packing Group:
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