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2-Methylnaphtho[1,2-d]thiazole

Also known as: 2-Methyl-beta-naphthothiazole, 2-Methyl-β-naphthothiazole, 2-Methyl-β-naphthylthiazole, 2-Methylnaphtho[1,2-d][1,3]thiazole, NSC 332548, 2-Methylbenzo[e][1,3]benzothiazole, MFCD00004951, EINECS 220-240-1

2-Methylnaphtho[1,2-d]thiazole (CAS 2682-45-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H9NS and a molecular weight of 199.272 g/mol. Key properties include a melting point of 95-97 °C(lit.), a boiling point of 352.7±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 174.0±8.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2682-45-3
Jingsj CID
J-1517797-6
Molecular Formula
C12H9NS
Molecular Weight
199.272 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point95-97 °C(lit.)
Boiling Point352.7±11.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point174.0±8.2 °C
Exact Mass199.045563
PSA41.13000
LogP3.64
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.741

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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-Methylnaphtho[1,2-d]thiazole?

The CAS number of 2-Methylnaphtho[1,2-d]thiazole is 2682-45-3.

What are the molecular formula and molecular weight of 2-Methylnaphtho[1,2-d]thiazole?

2-Methylnaphtho[1,2-d]thiazole has molecular formula C12H9NS and molecular weight 199.272 g/mol.

What are the upstream and downstream products of 2-Methylnaphtho[1,2-d]thiazole?

For 2-Methylnaphtho[1,2-d]thiazole, Upstream Products: N-(1-Naphthyl)acetamide, N-(1-naphthyl)thioacetamide; Downstream Products: 2-Methyl-1-(3-sulfopropyl)naphtho[1,2-d]thiazolium inner salt, 1-Ethyl-2-methylnaphtho[1,2-d]thiazolium p-toluenesulfonate, 2,3-dimethylnaphtho[1,2-d]thiazolium tosylate.

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

Last updated:

How to cite: Jingsj. "2-Methylnaphtho[1,2-d]thiazole (CAS 2682-45-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517797-6 (accessed 2026-11-09).

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