Acid Yellow 220

酸性黄220

Also known as: C.I. 11714, C.I. Acid Yellow 220, Tetrasodium bis(2-(((3-((1-((2-chloroanilino)carbonyl)-2-oxopropyl)azo)-4-hydroxyphenyl)sulphonyl)amino)benzoato(3-))cobaltate(4-), Tetrasodium bis[2-[[[3-[[1-[(2-chloroanilino)carbonyl]-2-oxopropyl]azo]-4-hydroxyphenyl]sulphonyl]amino]benzoato(3-)]cobaltate(4-), Cobaltate(4-), bis[2-[[[3-[[1-[[(2-chlorophenyl)amino]carbonyl]-2-oxopropyl]azo]-4-hydroxyphenyl]sulfonyl]amino]benzoato(3-)]-, tetrasodium, Yellow S-2G

Acid Yellow 220 (CAS 70851-34-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C46H32Cl2CoN8Na4O14S2 and a molecular weight of 1206.72000 g/mol. It is also known as C.I. 11714, C.I. Acid Yellow 220 and Tetrasodium bis(2-(((3-((1-((2-chloroanilino)carbonyl)-2-oxopropyl)azo)-4-hydroxyphenyl)sulphonyl)amino)benzoato(3-))cobaltate(4-). Key properties include a boiling point of 766.9ºC at 760 mmHg and a flash point of 417.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70851-34-2
Jingsj CID
J-1049016-1
Molecular Formula
C46H32Cl2CoN8Na4O14S2
Chinese Name
酸性黄220
Molecular Weight
1206.72000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point766.9ºC at 760 mmHg
Flash Point417.6ºC

Frequently Asked Questions

What is the CAS number of Acid Yellow 220?

The CAS number of Acid Yellow 220 is 70851-34-2.

What are the molecular formula and molecular weight of Acid Yellow 220?

Acid Yellow 220 has molecular formula C46H32Cl2CoN8Na4O14S2 and molecular weight 1206.72000 g/mol.

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

Last updated:

How to cite: Jingsj. "Acid Yellow 220 (CAS 70851-34-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1049016-1 (accessed 2026-10-25).

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