Erythrosin B

赤藓红B钠盐

Also known as: Acid Red 51, Erythrosine B, Disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate, FD&C Red No. 3, Food Red No. 3, Iodoesin, Pyrosin B, Dianthin B

Erythrosin B (CAS 568-63-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H6I4Na2O5 and a molecular weight of 879.856 g/mol. It is also known as Acid Red 51, Erythrosine B and Disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate. Key properties include a boiling point of 693.2ºC at 760 mmHg and a flash point of 373ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
568-63-8
Jingsj CID
J-46877-2
Molecular Formula
C20H6I4Na2O5
Chinese Name
赤藓红B钠盐
Molecular Weight
879.856 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point693.2ºC at 760 mmHg
Flash Point373ºC

Frequently Asked Questions

What is the CAS number of Erythrosin B?

The CAS number of Erythrosin B is 568-63-8.

What are the molecular formula and molecular weight of Erythrosin B?

Erythrosin B has molecular formula C20H6I4Na2O5 and molecular weight 879.856 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Erythrosin B (CAS 568-63-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46877-2 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.