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2-Methoxy-1,3-benzothiazole

Also known as: 2-Methoxybenzothiazole, 2-Methoxybenzo[d]thiazole, Benzothiazole, 2-methoxy-, 2-Methoxy-1,3-benzothiazole, 2-Methoxy-benzo<1,3>thiazol, 2-Methoxy-benzothiazol, 2-Methoxy-benzthiazol, Benzothiazole, 2-methoxy- (7CI,9CI)

2-Methoxy-1,3-benzothiazole (CAS 63321-86-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NOS and a molecular weight of 165.21200 g/mol. Key properties include a melting point of 34-38 °C, a boiling point of 248.7ºC at 760 mmHg, a density of 1.268g/cm3 and a flash point of 104.2ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
63321-86-8
Jingsj CID
J-1506168-4
Molecular Formula
C8H7NOS
Molecular Weight
165.21200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point34-38 °C
Boiling Point248.7ºC at 760 mmHg
Density1.268g/cm3
Flash Point104.2ºC
Exact Mass165.02500
PSA50.36000
LogP2.30490
Refractive Index1.645

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation

Frequently Asked Questions

What is the CAS number of 2-Methoxy-1,3-benzothiazole?

The CAS number of 2-Methoxy-1,3-benzothiazole is 63321-86-8.

What are the molecular formula and molecular weight of 2-Methoxy-1,3-benzothiazole?

2-Methoxy-1,3-benzothiazole has molecular formula C8H7NOS and molecular weight 165.21200 g/mol.

Is 2-Methoxy-1,3-benzothiazole hazardous?

2-Methoxy-1,3-benzothiazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2-Methoxy-1,3-benzothiazole?

For 2-Methoxy-1,3-benzothiazole, Upstream Products: 2-Chlorobenzothiazole, 2-Aminothiophenol, Methanol; Downstream Products: 6-Nitro-2-benzothiazolinone, 3-Methyl-2(3H)-benzothiazolone, Benzothiazole, 2-ethoxy- (9CI).

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-Methoxy-1,3-benzothiazole (CAS 63321-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506168-4 (accessed 2026-11-09).

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