Ponceau S, Certistain® for microscopy (C.I. 27195), Sigma-Aldrich®

Synonyms: CI 271953-Hydroxy-4-((2-sulpho-4-((4-sulphophenyl)diazenyl)phenyl)diazenyl)naphthalene-2,7-disulphonic acid, tetrasodium salt3-Hydroxy-4-(2-sulpho-4-[4-sulphophenylazo]phenylazo)-2,7-naphthalenedisulphonic acid sodium saltPonceau3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt3-Hydroxy-4-((2-sulfo-4-((4-sulfophenyl)diazenyl)phenyl)diazenyl)naphthalene-2,7-disulfonic acid, tetrasodium salt

1.15927.0025 1.15927.0025
EM1.15927.0025CS 10300.45 USD
CA1.15927.0025 EM1.15927.0025
Ponceau S, Certistain® for microscopy (C.I. 27195), Sigma-Aldrich®
Ponceau S
Formula: C₂₂H₁₂N₄Na₄O₁₃S₄
MW: 760.56 g/mol
MDL Number: MFCD00003892
CAS Number: 6226-79-5

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Specification Test Results

Solubility 10 g/l (20 °C)
Molar Mass 760.57 g/mol
Bulk Density 660 kg/m3
pH 9.0 (10 g/l, H2O, 20 °C)

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