Acid Brown 4

酸性棕4

Also known as: C.I. Acid Brown 4, C.I. 14805, Brown R, 1-Naphthalenesulfonic acid, 6-(4-aminophenyl)azo-5-hydroxy-, monosodium salt, 6-[(4-Aminophenyl)azo]-5-hydroxy-1-naphthalenesulfonic acid sodium salt, sodium 6-[(4-aminophenyl)azo]-5-hydroxynaphthalene-1-sulphonate, sodium,(6E)-6-[(4-aminophenyl)hydrazinylidene]-5-oxonaphthalene-1-sulfonate

Acid Brown 4 (CAS 5858-51-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H12N3NaO4S and a molecular weight of 365.33900 g/mol. It is also known as C.I. Acid Brown 4, C.I. 14805 and Brown R. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5858-51-5
Jingsj CID: J-1318947-3
Molecular Formula: C₁₆H₁₂N₃NaO₄S
Chinese Name: 酸性棕4
Molecular Weight: 365.33900 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of Acid Brown 4?

The CAS number of Acid Brown 4 is 5858-51-5.

What are the molecular formula and molecular weight of Acid Brown 4?

Acid Brown 4 has molecular formula C16H12N3NaO4S and molecular weight 365.33900 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. "Acid Brown 4 (CAS 5858-51-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1318947-3 (accessed 2026-10-25).

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