2-Hydroxybenzothiazole
Also known as: benzothiazolinone, 2(3H)-Benzothiazolone, Benzothiazol-2(3H)-one, 2-Benzothiazolol, 1,3-Benzothiazol-2(3H)-one, Benzo[d]thiazol-2(3H)-one, Benzo[d]thiazol-2-ol, 2-Oxobenzothiazole
2-Hydroxybenzothiazole (CAS 934-34-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5NOS and a molecular weight of 151.186 g/mol. Key properties include a melting point of 137-140 °C(lit.), a boiling point of 360.0±11.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 171.5±19.3 °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.
- 934-34-9
- Jingsj CID
- J-1013127-8
- Molecular Formula
- C7H5NOS
- Molecular Weight
- 151.186 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 137-140 °C(lit.) |
|---|---|
| Boiling Point | 360.0±11.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 171.5±19.3 °C |
| Exact Mass | 151.009186 |
| PSA | 61.36000 |
| LogP | 2.28 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.745 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. 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-Hydroxybenzothiazole?
The CAS number of 2-Hydroxybenzothiazole is 934-34-9.
What are the molecular formula and molecular weight of 2-Hydroxybenzothiazole?
2-Hydroxybenzothiazole has molecular formula C7H5NOS and molecular weight 151.186 g/mol.
Is 2-Hydroxybenzothiazole hazardous?
2-Hydroxybenzothiazole 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-Hydroxybenzothiazole?
For 2-Hydroxybenzothiazole, Upstream Products: 2-Aminothiophenol, Carbon dioxide, Benzothiazole; Downstream Products: 2-Hydrazinobenzothiazole, 6-Nitro-2-benzothiazolinone, 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. "2-Hydroxybenzothiazole (CAS 934-34-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1013127-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.