Naphthol AS-LC

Also known as: N-(4-chloro-2,5-dimethoxyphenyl)-3-hydroxy-2-naphthalenecarboxamide, N-(4-Chloro-2,5-dimethoxyphenyl)-3-hydroxy-2-naphthamide, 4'-chloro-3-hydroxy-2',5'-dimethoxy-2-naphthanilide, Naphtol AS-LC, C.I. 37555, C.I. Azoic Coupling Component 23, EINECS 224-270-6, azoic coupling component 23, C.I.Azoic Coupling Component 23, Naphtanilide LC, Naphtazol LC, Sanatol LC, Dycosthol AS-LC, Kiwa Grounder LC

Naphthol AS-LC (CAS 4273-92-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C19H16ClNO4 and a molecular weight of 357.78800 g/mol. Key properties include a melting point of 190ºC, a boiling point of 479.8ºC, a density of 1.371 g/cm3 and a flash point of 244ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4273-92-1
Jingsj CID: J-23860-8
Molecular Formula: C₁₉H₁₆ClNO₄
Molecular Weight: 357.78800 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	190ºC
Boiling Point	479.8ºC
Density	1.371 g/cm3
Flash Point	244ºC
Exact Mass	357.07700
PSA	67.79000
LogP	4.54130
Refractive Index	1.682

Customs & Trade Information

HS Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Naphthol AS-LC?

The CAS number of Naphthol AS-LC is 4273-92-1.

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

Naphthol AS-LC has molecular formula C19H16ClNO4 and molecular weight 357.78800 g/mol.

What are the upstream and downstream products of Naphthol AS-LC?

For Naphthol AS-LC, Upstream Products: 3-Hydroxy-2-naphthoic acid, 4-Chloro-2,5-dimethoxyaniline.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Naphthol AS-LC (CAS 4273-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23860-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.