CAS: 25738-43-6 - 3-Hydroxy-4-[2-(2,4,5-trimethylphenyl)diazenyl]-2,7-naphthalenedisulfonic acid

Formula: C₁₉H₁₈N₂O₇S₂

InChI: InChI=1S/C19H18N2O7S2/c1-10-6-12(3)16(7-11(10)2)20-21-18-15-5-4-14(29(23,24)25)8-13(15)9-17(19(18)22)30(26,27)28/h4-9,22H,1-3H3,(H,23,24,25)(H,26,27,28)

InChI key: InChIKey=OQQYJPVCDFFEIV-UHFFFAOYSA-N

SMILES: O=S(=O)(O)C1=CC=C2C(=C1)C=C(C(O)=C2N=NC=3C=C(C(=CC3C)C)C)S(=O)(=O)O

Synonyms:

• C.I. Food Red 6
• 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2,4,5-trimethylphenyl)azo]-
• 3-Hydroxy-4-[2-(2,4,5-trimethylphenyl)diazenyl]-2,7-naphthalenedisulfonic acid
• 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2,4,5-trimethylphenyl)diazenyl]-

Ponceau 3R

CAS: 25738-43-63564-09-8

• Formula: C₁₉H₁₆N₂Na₂O₇S₂
• Molecular weight: 494.44