2-Chloro-5-(chloromethyl)thiazole

2-氯-5-氯甲基噻唑

Also known as: 2-Chloro-5-chloromethylthiazole, 2-Chloro-5-(chloromethyl)-1,3-thiazole, Thiazole, 2-chloro-5-(chloromethyl)-, 2-Chloro-5-(chlormethyl)thiazole

2-Chloro-5-(chloromethyl)thiazole (CAS 105827-91-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3Cl2NS and a molecular weight of 168.044 g/mol. It is also known as 2-Chloro-5-chloromethylthiazole, 2-Chloro-5-(chloromethyl)-1,3-thiazole and Thiazole, 2-chloro-5-(chloromethyl)-. Key properties include a melting point of 31ºC, a boiling point of 268.6±32.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 116.3±25.1 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 105827-91-6
Jingsj CID: J-1136499-3
Molecular Formula: C₄H₃Cl₂NS
Chinese Name: 2-氯-5-氯甲基噻唑
Molecular Weight: 168.044 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	31ºC
Boiling Point	268.6±32.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	116.3±25.1 °C

GHS Safety & Compliance

Corrosion / Acute Toxicity / Environmental HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Chloro-5-(chloromethyl)thiazole?

The CAS number of 2-Chloro-5-(chloromethyl)thiazole is 105827-91-6.

What are the molecular formula and molecular weight of 2-Chloro-5-(chloromethyl)thiazole?

2-Chloro-5-(chloromethyl)thiazole has molecular formula C4H3Cl2NS and molecular weight 168.044 g/mol.

Is 2-Chloro-5-(chloromethyl)thiazole hazardous?

2-Chloro-5-(chloromethyl)thiazole has GHS signal word Danger.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Chloro-5-(chloromethyl)thiazole (CAS 105827-91-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1136499-3 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.