C.I. Acid Red 366

C.I.酸性红366

Also known as: Acid Red 366, sodium 6-amino-5-[(3,4-dichlorophenyl)azo]-4-hydroxynaphthalene-2-sulphonate, 6-Amino-5-[(3,4-dichlorophenyl)azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt, Kayanol red NBR, EINECS 251-863-7, sodium,5-[2-(3,4-dichlorophenyl)hydrazinyl]-6-imino-4-oxonaphthalene-2-sulfonate

C.I. Acid Red 366 (CAS 34179-43-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H10Cl2N3NaO4S and a molecular weight of 434.22900 g/mol. It is also known as Acid Red 366, sodium 6-amino-5-[(3,4-dichlorophenyl)azo]-4-hydroxynaphthalene-2-sulphonate and 6-Amino-5-[(3,4-dichlorophenyl)azo]-4-hydroxynaphthalene-2-sulfonic acid sodium salt. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 34179-43-6
Jingsj CID: J-1403862-4
Molecular Formula: C₁₆H₁₀Cl₂N₃NaO₄S
Chinese Name: C.I.酸性红366
Molecular Weight: 434.22900 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of C.I. Acid Red 366?

The CAS number of C.I. Acid Red 366 is 34179-43-6.

What are the molecular formula and molecular weight of C.I. Acid Red 366?

C.I. Acid Red 366 has molecular formula C16H10Cl2N3NaO4S and molecular weight 434.22900 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "C.I. Acid Red 366 (CAS 34179-43-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1403862-4 (accessed 2026-10-25).

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