5-Chloro-2-mercaptobenzoxazole

5-氯-2-巯基苯并恶唑

Also known as: 5-Chlorobenzooxazole-2-thiol, 5-Chloro-1,3-benzoxazole-2-thiol, 5-Chlorobenzo[d]oxazole-2-thiol, 5-Chlorobenzoxazole-2(3H)-thione, 5-Chloro-2,3-dihydrobenzoxazole-2-thione, 5-Chloro-2-thioxobenzoxazoline, 5-Chloro-2-mercaptobenzoxazine, 5-Chloro-2-benzoxazolethiol, 5-Chloro-3H-1,3-benzoxazole-2-thione, 5-Chloro-3H-benzooxazole-2-thione, 2-Mercapto-5-chlorobenzoxazole, 5-Chloro-1,3-benzoxazole-2(3H)-thione, MFCD00175241

5-Chloro-2-mercaptobenzoxazole (CAS 22876-19-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNOS and a molecular weight of 185.631 g/mol. It is also known as 5-Chlorobenzooxazole-2-thiol, 5-Chloro-1,3-benzoxazole-2-thiol and 5-Chlorobenzo[d]oxazole-2-thiol. Key properties include a melting point of 280-285 °C(lit.), a boiling point of 278.7±42.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 122.4±27.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22876-19-3
Jingsj CID
J-1402536-1
Molecular Formula
C7H4ClNOS
Chinese Name
5-氯-2-巯基苯并恶唑
Molecular Weight
185.631 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point280-285 °C(lit.)
Boiling Point278.7±42.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point122.4±27.9 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-Chloro-2-mercaptobenzoxazole?

The CAS number of 5-Chloro-2-mercaptobenzoxazole is 22876-19-3.

What are the molecular formula and molecular weight of 5-Chloro-2-mercaptobenzoxazole?

5-Chloro-2-mercaptobenzoxazole has molecular formula C7H4ClNOS and molecular weight 185.631 g/mol.

Is 5-Chloro-2-mercaptobenzoxazole hazardous?

5-Chloro-2-mercaptobenzoxazole has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "5-Chloro-2-mercaptobenzoxazole (CAS 22876-19-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1402536-1 (accessed 2026-10-22).

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