Naphthol AS

Also known as: 3-hydroxy-N-phenylnaphthalene-2-carboxamide, 3-Hydroxy-2-naphthanilide, 2-Hydroxy-3-naphthoic acid anilide, 3-Hydroxy-2-naphthoic acid anilide, Azoic Coupling Component 2, C.I. 37505, C.I. Azoic Coupling Component 2, N-(3-hydroxy-2-naphthoyl)aniline, 3-hydroxy-N-phenyl-2-naphthamide, 2-hydroxy-3-(phenylcarbamoyl)naphthalene, 2-hydroxy-N-phenyl-3-naphthalenecarboxamide, 3-hydroxy-N-phenyl-2-naphthalenecarboxamide, Amarthol AS, Azonaphtol A, Cibanaphthol RF, Dragonthol A, Naphtanilide RC, Naphthol AS Supra, Naphtoelan A, Solunaptol A

Naphthol AS (CAS 92-77-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C17H13NO2 and a molecular weight of 263.291 g/mol. Key properties include a melting point of 246-248 °C(lit.), a boiling point of 391.8±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 190.7±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 92-77-3
Jingsj CID: J-1510932-7
Molecular Formula: C₁₇H₁₃NO₂
Molecular Weight: 263.291 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	246-248 °C(lit.)
Boiling Point	391.8±25.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	190.7±23.2 °C
Exact Mass	263.094635
PSA	49.33000
LogP	4.50
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.735

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?

The CAS number of Naphthol AS is 92-77-3.

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

Naphthol AS has molecular formula C17H13NO2 and molecular weight 263.291 g/mol.

What are the upstream and downstream products of Naphthol AS?

For Naphthol AS, Upstream Products: 3-Hydroxy-2-naphthoic acid, Phenyl isothiocyanate, 3-Acetoxy-2-naphthanilide; Downstream Products: Pigment Red 21, Pigment Red 22, C.I. Pigment Blue 25.

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 (CAS 92-77-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510932-7 (accessed 2026-11-09).

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