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7-Chlorobenzo[d]oxazole-2(3H)-thione

Also known as: 2(3H)-Benzoxazolethione, 7-chloro-, 7-Chloro-2-mercaptobenzoxazole, 7-Chlorobenzoxazole-2(3H)-thione, 7-chloro-1,3-benzoxazole-2-thiol, 7-chloro-3H-1,3-benzoxazole-2-thione, 7-chlorobenzo[d]oxazole-2-thiol, 7-chlorobenzoxazole-2-thiol, Nsc77358

7-Chlorobenzo[d]oxazole-2(3H)-thione (CAS 51793-93-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNOS and a molecular weight of 185.63100 g/mol. Key properties include a melting point of 252-256ºC(lit.), a boiling point of 286.7ºC at 760mmHg, a density of 1.57g/cm3 and a flash point of 127.2ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51793-93-2
Jingsj CID
J-31275-4
Molecular Formula
C7H4ClNOS
Molecular Weight
185.63100 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point252-256ºC(lit.)
Boiling Point286.7ºC at 760mmHg
Density1.57g/cm3
Flash Point127.2ºC
Exact Mass184.97000
PSA64.83000
LogP2.76990
Refractive Index1.723

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 7-Chlorobenzo[d]oxazole-2(3H)-thione?

The CAS number of 7-Chlorobenzo[d]oxazole-2(3H)-thione is 51793-93-2.

What are the molecular formula and molecular weight of 7-Chlorobenzo[d]oxazole-2(3H)-thione?

7-Chlorobenzo[d]oxazole-2(3H)-thione has molecular formula C7H4ClNOS and molecular weight 185.63100 g/mol.

Is 7-Chlorobenzo[d]oxazole-2(3H)-thione hazardous?

7-Chlorobenzo[d]oxazole-2(3H)-thione has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 7-Chlorobenzo[d]oxazole-2(3H)-thione?

For 7-Chlorobenzo[d]oxazole-2(3H)-thione, Upstream Products: 2-Chloro-6-nitrophenol, Carbon disulphide, 2-Amino-6-chlorophenol; Downstream Products: 2,7-Dichlorobenzo[d]oxazole.

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

Last updated:

How to cite: Jingsj. "7-Chlorobenzo[d]oxazole-2(3H)-thione (CAS 51793-93-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31275-4 (accessed 2026-11-09).

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