4-Methoxy-2-phenylazo-1-naphthol

Also known as: 4-METHOXY-2-PHENYLAZO-1-NAPHTHOL, 4-Methoxy-2-phenylazo-1-naphtol, Methoxyphenylazonaphtol, 4-methoxy-2-[(E)-phenyldiazenyl]naphthalen-1-ol, 1-Naphthalenol, 4-methoxy-2-(2-phenyldiazenyl)-

4-Methoxy-2-phenylazo-1-naphthol (CAS 59900-33-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C17H14N2O2 and a molecular weight of 278.30500 g/mol. Key properties include a melting point of 142ºC, a boiling point of 499.3ºC at 760 mmHg, a density of 1.19g/cm3 and a flash point of 255.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 59900-33-3
Jingsj CID: J-19696-3
Molecular Formula: C₁₇H₁₄N₂O₂
Molecular Weight: 278.30500 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	142ºC
Boiling Point	499.3ºC at 760 mmHg
Density	1.19g/cm3
Flash Point	255.8ºC
Exact Mass	278.10600
PSA	54.18000
LogP	4.96940
Refractive Index	1.615

Customs & Trade Information

HS Code	2927000090
Summary	2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Methoxy-2-phenylazo-1-naphthol?

The CAS number of 4-Methoxy-2-phenylazo-1-naphthol is 59900-33-3.

What are the molecular formula and molecular weight of 4-Methoxy-2-phenylazo-1-naphthol?

4-Methoxy-2-phenylazo-1-naphthol has molecular formula C17H14N2O2 and molecular weight 278.30500 g/mol.

What are the upstream and downstream products of 4-Methoxy-2-phenylazo-1-naphthol?

For 4-Methoxy-2-phenylazo-1-naphthol, Upstream Products: 4-Methoxy-1-naphthol, Benzenediazonium chloride, 1,4-Naphthoquinone.

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. "4-Methoxy-2-phenylazo-1-naphthol (CAS 59900-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19696-3 (accessed 2026-11-09).

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