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6-Acetyl-2(3H)-benzothiazolone

Also known as: 2(3H)-Benzothiazolone, 6-acetyl-, 2(3H)-Benzothiazolone,6-acetyl-(9CI), 6-Acetyl-1,3-benzothiazol-2(3H)-one, 6-Acetyl-2(3H)-benzo[d]thiazolone, 6-Acetylbenzo[d]thiazol-2(3H)-one, 6-Acetylbenzo[d]thiazol-2(3H), 6-Acetylbenzothiazolin-2-one, 6-Acetyl-2-benzothiazolone, 6-Acetyl-2-benzothiazolinone, 6-acetyl-3H-1,3-benzothiazol-2-one, 6-acetyl-3H-benzthiazole-2-one, 6-acetylbenzothiazolinone, MFCD02660572

6-Acetyl-2(3H)-benzothiazolone (CAS 133044-44-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2S and a molecular weight of 193.222 g/mol. Key properties include a melting point of 190-194ºC and a density of 1.4±0.1 g/cm3. 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.
133044-44-7
Jingsj CID
J-10500-0
Molecular Formula
C9H7NO2S
Molecular Weight
193.222 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190-194ºC
Density1.4±0.1 g/cm3
Exact Mass193.019745
PSA78.17000
LogP1.21
Refractive Index1.635

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2934200090
Summary2934200090. other compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused. 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 6-Acetyl-2(3H)-benzothiazolone?

The CAS number of 6-Acetyl-2(3H)-benzothiazolone is 133044-44-7.

What are the molecular formula and molecular weight of 6-Acetyl-2(3H)-benzothiazolone?

6-Acetyl-2(3H)-benzothiazolone has molecular formula C9H7NO2S and molecular weight 193.222 g/mol.

Is 6-Acetyl-2(3H)-benzothiazolone hazardous?

6-Acetyl-2(3H)-benzothiazolone 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 6-Acetyl-2(3H)-benzothiazolone?

For 6-Acetyl-2(3H)-benzothiazolone, Upstream Products: 2-Hydroxybenzothiazole, Acetyl chloride; Downstream Products: Ethyl 2-oxo-2,3-dihydrobenzo[d]thiazole-6-carboxylate, 2-Hydroxybenzo[d]thiazole-6-carboxylic acid.

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

Last updated:

How to cite: Jingsj. "6-Acetyl-2(3H)-benzothiazolone (CAS 133044-44-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10500-0 (accessed 2026-11-09).

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