Naphthol AS-LT

色酚 AS-LT

Also known as: 3-Hydroxy-4'-methoxy-2'-methyl-2-naphthanilide, 3-Hydroxy-N-(4-methoxy-2-methylphenyl)naphthalene-2-carboxamide, 3-Hydroxy-2'-methyl-2-naphth-p-anisidide, 3-Hydroxynaphthalene-2-carboxylic acid (4-methoxy-2-methyl)anilide, Azoic Coupling Component 24, C.I. Azoic Coupling Component 24, Naphtol AS-LT

Naphthol AS-LT (CAS 3689-20-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C19H17NO3 and a molecular weight of 307.34300 g/mol. It is also known as 3-Hydroxy-4'-methoxy-2'-methyl-2-naphthanilide, 3-Hydroxy-N-(4-methoxy-2-methylphenyl)naphthalene-2-carboxamide and 3-Hydroxy-2'-methyl-2-naphth-p-anisidide. Key properties include a boiling point of 436.8ºC at 760 mmHg, a density of 1.274 g/cm3 and a flash point of 218ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3689-20-1
Jingsj CID
J-1166985-6
Molecular Formula
C19H17NO3
Chinese Name
色酚 AS-LT
Molecular Weight
307.34300 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point436.8ºC at 760 mmHg
Density1.274 g/cm3
Flash Point218ºC

Frequently Asked Questions

What is the CAS number of Naphthol AS-LT?

The CAS number of Naphthol AS-LT is 3689-20-1.

What are the molecular formula and molecular weight of Naphthol AS-LT?

Naphthol AS-LT has molecular formula C19H17NO3 and molecular weight 307.34300 g/mol.

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

Last updated:

How to cite: Jingsj. "Naphthol AS-LT (CAS 3689-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1166985-6 (accessed 2026-10-25).

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