Thiazole-4-carboxylic acid
Also known as: 4-Thiazolecarboxylic acid, 4-Thiazolecarboxylic acid 97%, 4-Thiazolecarboxylic Acid, 97+%, 1,3-Thiazole-4-carboxylic acid, 4-Carboxy-1,3-thiazole, NSC 195467, MFCD00623589
Thiazole-4-carboxylic acid (CAS 3973-08-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3NO2S and a molecular weight of 129.14 g/mol. Key properties include a melting point of 195-199 °C(lit.), a boiling point of 319.2±15.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 146.9±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3973-08-8
- Jingsj CID
- J-40671-3
- Molecular Formula
- C4H3NO2S
- Molecular Weight
- 129.14 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 195-199 °C(lit.) |
|---|---|
| Boiling Point | 319.2±15.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 146.9±20.4 °C |
| Exact Mass | 128.988449 |
| PSA | 78.43000 |
| LogP | 1.06 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.618 |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
Customs & Trade Information
| HS Code | 2934100090 |
|---|---|
| Summary | 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Thiazole-4-carboxylic acid?
The CAS number of Thiazole-4-carboxylic acid is 3973-08-8.
What are the molecular formula and molecular weight of Thiazole-4-carboxylic acid?
Thiazole-4-carboxylic acid has molecular formula C4H3NO2S and molecular weight 129.14 g/mol.
Is Thiazole-4-carboxylic acid hazardous?
Thiazole-4-carboxylic acid has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Thiazole-4-carboxylic acid?
For Thiazole-4-carboxylic acid, Upstream Products: 3-Bromopyruvic acid, Methanimidic acid, (Z)-, 4-Methylthiazole; Downstream Products: 1-(4-Thiazolyl)ethanone, 1,3-thiazole-4-carbonyl chloride, Methyl 4-thiazolecarboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thiazole-4-carboxylic acid (CAS 3973-08-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40671-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.