2-Hydroxy-3-naphthoamide

Also known as: 2-Hydroxy-3-naphthamide, 3-Hydroxy-2-naphthamide, 2-Hydroxy-3-naphthalenecarboxamide, 3-Hydroxy-2-naphthalenecarboxamide, 3-Hydroxy-2-naphthoylamide, COUPLER AP, 2-Naphthalenecarboxamide, 3-hydroxy-, 2-HYDROXY-3-NAPHTHALENECARBOXAMIDE, 2-HYDROXY-3-NAPHTOAMIDE, 2-NAPHTHAMIDE,3-HYDROXY, 2-hydroxynaphthalene-3-carboxamide, 3-hydroxynaphthalene-2-carboxamide, 3-hydroxy-2-aminocarbonylnaphthalene, EINECS 222-926-6, MFCD00082972

2-Hydroxy-3-naphthoamide (CAS 3665-51-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C11H9NO2 and a molecular weight of 187.19500 g/mol. Key properties include a melting point of 211-216ºC, a boiling point of 426.4ºC at 760mmHg, a density of 1.33g/cm3 and a flash point of 211.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3665-51-8
Jingsj CID: J-34680-5
Molecular Formula: C₁₁H₉NO₂
Molecular Weight: 187.19500 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	211-216ºC
Boiling Point	426.4ºC at 760mmHg
Density	1.33g/cm3
Flash Point	211.7ºC
Exact Mass	187.06300
PSA	63.32000
LogP	2.34460
Refractive Index	1.708

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 2-Hydroxy-3-naphthoamide?

The CAS number of 2-Hydroxy-3-naphthoamide is 3665-51-8.

What are the molecular formula and molecular weight of 2-Hydroxy-3-naphthoamide?

2-Hydroxy-3-naphthoamide has molecular formula C11H9NO2 and molecular weight 187.19500 g/mol.

What are the upstream and downstream products of 2-Hydroxy-3-naphthoamide?

For 2-Hydroxy-3-naphthoamide, Upstream Products: 3-Hydroxy-2-naphthoic acid, 3-Methoxynaphthalene-2-carbonitrile, Urea.

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. "2-Hydroxy-3-naphthoamide (CAS 3665-51-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34680-5 (accessed 2026-11-09).

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