6226-79-5 T1C2UGS05F Ponceau S C.I. Acid Red 112, tetrasodium salt (8CI) 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, tetrasodium salt Tetrasodium 3-hydroxy-4-(2-sulphonato-4-(4-sulphonatophenylazo)phenylazo)naphthalene-2,7-disulphonate 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-(2-(2-sulfo-4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:4) C.I. 27195 C.I. Acid Red 112 EINECS 228-319-2 2-Hydroxy-1-((4((4-sulfophenyl)azo)-2-sulfophenyl)azo)naphthalene-3,6-disulfonic acid, tetrasodium salt NSC 16216 Ponceau S Extra Ponceau Red S UNII-T1C2UGS05F CAS 6226-79-5

Purity 97%+In StockPharmaceutical Standards
CAS No.6226-79-5
Molecular FormulaC22H34N4O13S4
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6226-79-5
T1C2UGS05F
Ponceau S
C.I. Acid Red 112, tetrasodium salt (8CI)
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, tetrasodium salt
Tetrasodium 3-hydroxy-4-(2-sulphonato-4-(4-sulphonatophenylazo)phenylazo)naphthalene-2,7-disulphonate
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-(2-(2-sulfo-4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:4)
C.I. 27195
C.I. Acid Red 112
EINECS 228-319-2
2-Hydroxy-1-((4((4-sulfophenyl)azo)-2-sulfophenyl)azo)naphthalene-3,6-disulfonic acid, tetrasodium salt
NSC 16216
Ponceau S Extra
Ponceau Red S
UNII-T1C2UGS05F CAS 6226-79-5 chemical structure

Description

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

6226-79-5 T1C2UGS05F Ponceau S C.I. Acid Red 112, tetrasodium salt (8CI) 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, tetrasodium salt Tetrasodium 3-hydroxy-4-(2-sulphonato-4-(4-sulphonatophenylazo)phenylazo)naphthalene-2,7-disulphonate 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-(2-(2-sulfo-4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:4) C.I. 27195 C.I. Acid Red 112 EINECS 228-319-2 2-Hydroxy-1-((4((4-sulfophenyl)azo)-2-sulfophenyl)azo)naphthalene-3,6-disulfonic acid, tetrasodium salt NSC 16216 Ponceau S Extra Ponceau Red S UNII-T1C2UGS05F (CAS 6226-79-5) is a high-purity analytical reference standard with the molecular formula C22H34N4O13S4Na and a molecular weight of 713.76 g/mol.

Structurally, 6226-79-5 T1C2UGS05F Ponceau S C.I. Acid Red 112, tetrasodium salt (8CI) 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, tetrasodium salt Tetrasodium 3-hydroxy-4-(2-sulphonato-4-(4-sulphonatophenylazo)phenylazo)naphthalene-2,7-disulphonate 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-(2-(2-sulfo-4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:4) C.I. 27195 C.I. Acid Red 112 EINECS 228-319-2 2-Hydroxy-1-((4((4-sulfophenyl)azo)-2-sulfophenyl)azo)naphthalene-3,6-disulfonic acid, tetrasodium salt NSC 16216 Ponceau S Extra Ponceau Red S UNII-T1C2UGS05F (C22H34N4O13S4Na) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 713.76 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC22H34N4O13S4 4*Na
Molecular Weight713.76 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms4
Sulfur Atoms4

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