Compound Q&A
What are the physical and chemical properties of Ponceau 3R (CAS: 3564-09-8)?
Answer
Ponceau 3R is a red azo dye with a molecular weight of approximately 512.34 g/mol. It is slightly soluble in water and ethanol. Ponceau 3R is known for its low reactivity and stability under various conditions, making it suitable for food and textile dyeing. It is also stable under acidic and alkaline conditions, with good light and heat resistance.
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
