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MilliporeSigma

Ponceau SX

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analytical standard

Synonym(s): 3-(2,4-Dimethyl-5-sulfophenylazo)-4-hydroxynaphthalene-1-sulfonic acid disodium salt; Food Red 1

Empirical Formula: C₁₈H₁₄N₂Na₂O₇S₂

Formula Weight: 480.42

Linear Formula: C₁₈H₁₄N₂Na₂O₇S₂

MDL Number: MFCD00046402

Purity: ≥98.0% (HPLC)

Beilstein Registry Number: 7161700

WGK Germany: 3

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