5-Chloro-1H-1,2,4-triazole-3-carboxylic acid
Also known as: 1H-1,2,4-Triazole-3-carboxylic acid, 5-chloro-, 1H-1,2,4-Triazole-3-carboxylicacid, 5-chloro-, 1H-1,2,4-triazole-5-carboxylic acid, 3-chloro-, 5-Chloro-2H-1,2,4-triazole-3-carboxylic acid, 5-Chloro-4H-1,2,4-triazole-3-carboxylic acid, 3-Chloro-1H-1,2,4-triazole-5-carboxylic acid
5-Chloro-1H-1,2,4-triazole-3-carboxylic acid (CAS 21733-03-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H2ClN3O2 and a molecular weight of 147.520 g/mol. Key properties include a boiling point of 483.7±28.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 246.4±24.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21733-03-9
- Jingsj CID
- J-1080630-1
- Molecular Formula
- C3H2ClN3O2
- Molecular Weight
- 147.520 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 483.7±28.0 °C at 760 mmHg |
|---|---|
| Density | 1.9±0.1 g/cm3 |
| Flash Point | 246.4±24.0 °C |
| Exact Mass | 146.983551 |
| PSA | 78.87000 |
| LogP | 0.02 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.650 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 5-Chloro-1H-1,2,4-triazole-3-carboxylic acid?
The CAS number of 5-Chloro-1H-1,2,4-triazole-3-carboxylic acid is 21733-03-9.
What are the molecular formula and molecular weight of 5-Chloro-1H-1,2,4-triazole-3-carboxylic acid?
5-Chloro-1H-1,2,4-triazole-3-carboxylic acid has molecular formula C3H2ClN3O2 and molecular weight 147.520 g/mol.
What are the upstream and downstream products of 5-Chloro-1H-1,2,4-triazole-3-carboxylic acid?
For 5-Chloro-1H-1,2,4-triazole-3-carboxylic acid, Upstream Products: 3-Amino-1H-1,2,4-triazole-5-carboxylic acid; Downstream Products: methyl 5-chloro-1H-1,2,4-triazole-3-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. "5-Chloro-1H-1,2,4-triazole-3-carboxylic acid (CAS 21733-03-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1080630-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.