1H-1,2,3-Triazole-4-carboxylic acid
Also known as: 1,2,3-TRIAZOLE-4-CARBOXYLIC ACID, 1,2,3-TRIAZOLE-5-CARBOXYLIC ACID, 1H-1,2,3-TRIAZOLE-4-CARBOXYLIC ACID, 1H-1,2,3-Triazole-5-carboxylic acid, 2H-1,2,3-triazole-4-carboxylic acid, 2H-triazole-4-carboxylic acid, 3H-[1,2,3]TRIAZOLE-4-CARBOXYLIC ACID, 3H-[1,2,3]Triazole-4-carboxylic acid, 5-Carboxy-1,2,3-triazole
1H-1,2,3-Triazole-4-carboxylic acid (CAS 16681-70-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H3N3O2 and a molecular weight of 113.075 g/mol. Key properties include a boiling point of 446.2±18.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 223.7±21.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16681-70-2
- Jingsj CID
- J-32004-7
- Molecular Formula
- C3H3N3O2
- Molecular Weight
- 113.075 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 446.2±18.0 °C at 760 mmHg |
|---|---|
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 223.7±21.2 °C |
| Exact Mass | 113.022530 |
| PSA | 78.87000 |
| LogP | -0.09 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.632 |
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 1H-1,2,3-Triazole-4-carboxylic acid?
The CAS number of 1H-1,2,3-Triazole-4-carboxylic acid is 16681-70-2.
What are the molecular formula and molecular weight of 1H-1,2,3-Triazole-4-carboxylic acid?
1H-1,2,3-Triazole-4-carboxylic acid has molecular formula C3H3N3O2 and molecular weight 113.075 g/mol.
What are the upstream and downstream products of 1H-1,2,3-Triazole-4-carboxylic acid?
For 1H-1,2,3-Triazole-4-carboxylic acid, Upstream Products: 1H-1,2,3-Triazole-4-carbaldehyde, Methyl 1H-1,2,3-triazole-4-carboxylate, 4-Methyl-1H-1,2,3-triazole; Downstream Products: Ethyl 1H-1,2,3-triazole-4-carboxylate, 4,5-Dibromo-1H-1,2,3-triazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-1,2,3-Triazole-4-carboxylic acid (CAS 16681-70-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32004-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.