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2-Cyano-6-methoxybenzothiazole

Also known as: 6-Methoxy-2-benzothiazolecarbonitrile, 6-Methoxybenzo[d]thiazole-2-carbonitrile, 6-Methoxybenzothiazole-2-carbonitrile, 6-Methoxy-2-cyanobenzothiazole, 6-Methoxy-1,3-benzothiazole-2-carbonitrile, 2-CYANO-6-METHOXYBENZOTHIAZOLE, MFCD00010537

2-Cyano-6-methoxybenzothiazole (CAS 943-03-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6N2OS and a molecular weight of 190.222 g/mol. Key properties include a melting point of 129-131 °C(lit.), a boiling point of 334.9±34.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 156.4±25.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
943-03-3
Jingsj CID
J-19303-3
Molecular Formula
C9H6N2OS
Molecular Weight
190.222 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point129-131 °C(lit.)
Boiling Point334.9±34.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point156.4±25.7 °C
Exact Mass190.020081
PSA74.15000
LogP2.16
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.654

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • 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 2-Cyano-6-methoxybenzothiazole?

The CAS number of 2-Cyano-6-methoxybenzothiazole is 943-03-3.

What are the molecular formula and molecular weight of 2-Cyano-6-methoxybenzothiazole?

2-Cyano-6-methoxybenzothiazole has molecular formula C9H6N2OS and molecular weight 190.222 g/mol.

Is 2-Cyano-6-methoxybenzothiazole hazardous?

2-Cyano-6-methoxybenzothiazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of 2-Cyano-6-methoxybenzothiazole?

For 2-Cyano-6-methoxybenzothiazole, Upstream Products: 6-Methoxybenzo[d]thiazole-2-carboxamide, 6-Methoxybenzothiazole-2-carboxylic acid, Methyl 6-methoxy-1,3-benzothiazole-2-carboxylate; Downstream Products: 6-hydroxybenzo[d]thiazole-2-carbonitrile, D-Luciferin, L-Luciferin.

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

Last updated:

How to cite: Jingsj. "2-Cyano-6-methoxybenzothiazole (CAS 943-03-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19303-3 (accessed 2026-11-09).

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