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3-Methyl-1,3-benzothiazole-2(3H)-thione

Also known as: 2(3H)-Benzothiazolethione,3-methyl-, 3-Methyl-2(3H)-benzothiazolethione, N-Methylbenzothiazole-2-thione, N-Methylbenzothiazoline-2-thione, 3-Methylbenzothiazoline-2-thione, 3-Methylbenzo[d]thiazole-2(3H)-thione, 3-Methyl-1,3-benzothiazoline-2-thione, 3-Methyl-3H-benzothiazole-2-thione, 3-Methylbenzo[d]thiazoline-2-thione

3-Methyl-1,3-benzothiazole-2(3H)-thione (CAS 2254-94-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NS2 and a molecular weight of 181.27800 g/mol. Key properties include a melting point of 88-91ºC(lit.), a boiling point of 300.6ºC at 760mmHg, a density of 1.39g/cm3 and a flash point of 135.6ºC. 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.
2254-94-6
Jingsj CID
J-1330068-0
Molecular Formula
C8H7NS2
Molecular Weight
181.27800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point88-91ºC(lit.)
Boiling Point300.6ºC at 760mmHg
Density1.39g/cm3
Flash Point135.6ºC
Exact Mass181.00200
PSA65.26000
LogP2.96930
Vapor Pressure0.00111mmHg at 25°C
Refractive Index1.753

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 3-Methyl-1,3-benzothiazole-2(3H)-thione?

The CAS number of 3-Methyl-1,3-benzothiazole-2(3H)-thione is 2254-94-6.

What are the molecular formula and molecular weight of 3-Methyl-1,3-benzothiazole-2(3H)-thione?

3-Methyl-1,3-benzothiazole-2(3H)-thione has molecular formula C8H7NS2 and molecular weight 181.27800 g/mol.

Is 3-Methyl-1,3-benzothiazole-2(3H)-thione hazardous?

3-Methyl-1,3-benzothiazole-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 3-Methyl-1,3-benzothiazole-2(3H)-thione?

For 3-Methyl-1,3-benzothiazole-2(3H)-thione, Upstream Products: 2-Mercaptobenzothiazole, Dimethyl Carbonate, 2-(Methylthio)benzothiazole; Downstream Products: 3-Methylbenzothiazolium iodide, Benzothiazole, Carbon disulphide.

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

Last updated:

How to cite: Jingsj. "3-Methyl-1,3-benzothiazole-2(3H)-thione (CAS 2254-94-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1330068-0 (accessed 2026-11-09).

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