Skip to main content

1,3-Benzothiazole-6-carboxylic acid

Also known as: Benzo[d]thiazole-6-carboxylic acid, 6-Benzothiazolecarboxylic acid, Benzothiazole-6-carboxylic acid, MFCD00111651

1,3-Benzothiazole-6-carboxylic acid (CAS 3622-35-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5NO2S and a molecular weight of 179.196 g/mol. Key properties include a melting point of 245-251 °C(lit.), a boiling point of 387.7±15.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 188.3±20.4 °C. 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.
3622-35-3
Jingsj CID
J-1430793-8
Molecular Formula
C8H5NO2S
Molecular Weight
179.196 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point245-251 °C(lit.)
Boiling Point387.7±15.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point188.3±20.4 °C
Exact Mass179.004105
PSA78.43000
LogP1.69
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.732

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 1,3-Benzothiazole-6-carboxylic acid?

The CAS number of 1,3-Benzothiazole-6-carboxylic acid is 3622-35-3.

What are the molecular formula and molecular weight of 1,3-Benzothiazole-6-carboxylic acid?

1,3-Benzothiazole-6-carboxylic acid has molecular formula C8H5NO2S and molecular weight 179.196 g/mol.

Is 1,3-Benzothiazole-6-carboxylic acid hazardous?

1,3-Benzothiazole-6-carboxylic acid 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 1,3-Benzothiazole-6-carboxylic acid?

For 1,3-Benzothiazole-6-carboxylic acid, Upstream Products: 6-Methylbenzothiazole, 6-Cyanobenzothiazole, 2-Amino-5-methylbenzenethiol; Downstream Products: 2-Methyl-1,3-benzothiazole-6-carboxylic acid, methyl benzo[d]thiazole-6-carboxylate.

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

Last updated:

How to cite: Jingsj. "1,3-Benzothiazole-6-carboxylic acid (CAS 3622-35-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1430793-8 (accessed 2026-11-09).

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