2-methylnaphth[2,3-d]oxazole

Also known as: 2-methylnaphtho[2,3-d]oxazole, 2-methylbenzo[f][1,3]benzoxazole, 2-methyl-naphth[2,3-d]oxazole, Naphth[2,3-d]oxazole, 2-methyl-, 2-methylnaphtho[2,3-d][1,3]oxazole

2-methylnaphth[2,3-d]oxazole (CAS 20686-66-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H9NO and a molecular weight of 183.20600 g/mol. Key properties include a melting point of 87-89°C, a boiling point of 309-311°C, a density of 1.221g/cm3 and a flash point of 309-311°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20686-66-2
Jingsj CID: J-1991378-1
Molecular Formula: C₁₂H₉NO
Molecular Weight: 183.20600 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	87-89°C
Boiling Point	309-311°C
Density	1.221g/cm3
Flash Point	309-311°C
Exact Mass	183.06800
PSA	26.03000
LogP	3.28940
Vapor Pressure	0.000565mmHg at 25°C
Refractive Index	1.687

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-methylnaphth[2,3-d]oxazole?

The CAS number of 2-methylnaphth[2,3-d]oxazole is 20686-66-2.

What are the molecular formula and molecular weight of 2-methylnaphth[2,3-d]oxazole?

2-methylnaphth[2,3-d]oxazole has molecular formula C12H9NO and molecular weight 183.20600 g/mol.

What are the upstream and downstream products of 2-methylnaphth[2,3-d]oxazole?

For 2-methylnaphth[2,3-d]oxazole, Upstream Products: Diethyl ethoxymethylenemalonate, 3-Amino-2-naphthol.

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-methylnaphth[2,3-d]oxazole (CAS 20686-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991378-1 (accessed 2026-11-09).

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