5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid
Also known as: 1H-Pyrazole-4-carboxylic acid, 5-amino-1-methyl-, 1H-Pyrazole-4-carboxylicacid,5-amino-1-methyl-(9CI), 5-Amino-1-methylpyrazole-4-carboxylic acid, 5-Amino-4-carboxy-1-methyl-1H-pyrazole, 5-azanyl-1-methyl-pyrazole-4-carboxylic acid
5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 4058-91-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O2 and a molecular weight of 141.128 g/mol. Key properties include a boiling point of 371.3±27.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 178.3±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4058-91-7
- Jingsj CID
- J-3970-3
- Molecular Formula
- C5H7N3O2
- Molecular Weight
- 141.128 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 371.3±27.0 °C at 760 mmHg |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 178.3±23.7 °C |
| Exact Mass | 141.053833 |
| PSA | 81.14000 |
| LogP | 0.25 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.663 |
Frequently Asked Questions
What is the CAS number of 5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid?
The CAS number of 5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid is 4058-91-7.
What are the molecular formula and molecular weight of 5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid?
5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid has molecular formula C5H7N3O2 and molecular weight 141.128 g/mol.
What are the upstream and downstream products of 5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid?
For 5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid, Upstream Products: Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate, 5-Amino-1-methyl-1H-pyrazole-4-carbonitrile; Downstream Products: 1-Methyl-5-nitro-1H-pyrazole-4-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. "5-Amino-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 4058-91-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3970-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.