Compound Q&A
How is Ponceau 3R (CAS: 3564-09-8) typically synthesized?
Answer
Ponceau 3R is synthesized through a multi-step process involving the coupling of an aromatic amine with an azo coupling agent. The reaction is typically carried out in organic solvents like methanol or ethanol under acidic conditions. The yield is around 70-80%, and the process involves careful control of temperature and pH to ensure high selectivity and purity.
About
CAS No
3564-09-8
English Name
Ponceau 3R
Molecular Formula
C19H16N2Na2O7S2
Molecular Weight
494.5 g/mol
SMILES
CC1=CC(=C(C=C1C)N=NC2=C3C=CC(=CC3=CC(=C2O)S(=O)(=O)[O-])S(=O)(=O)[O-])C.[Na+].[Na+]
InChIKey
SWPPXVFKWWEYSV-UHFFFAOYSA-L
Last Updated: 2026-01-01 06:12
