4-Nitro-1H-pyrazole-3-carboxylic acid
Also known as: 4-Nitropyrazole-3-carboxylic acid, 4-Nitro-3-pyrazolecarboxylic acid, 4-Nitro-1H-pyrazole-3-carboxylicacid, 1H-Pyrazole-3-carboxylic acid, 4-nitro-, NSC 1411, MFCD00090899
4-Nitro-1H-pyrazole-3-carboxylic acid (CAS 5334-40-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3N3O4 and a molecular weight of 157.084 g/mol. Key properties include a melting point of 195°C, a boiling point of 509.6±35.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 262.0±25.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5334-40-7
- Jingsj CID
- J-39224-5
- Molecular Formula
- C4H3N3O4
- Molecular Weight
- 157.084 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 195°C |
|---|---|
| Boiling Point | 509.6±35.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 262.0±25.9 °C |
| Exact Mass | 157.012360 |
| PSA | 111.80000 |
| LogP | 0.00 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.680 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933199090 |
|---|---|
| Summary | 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. 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 4-Nitro-1H-pyrazole-3-carboxylic acid?
The CAS number of 4-Nitro-1H-pyrazole-3-carboxylic acid is 5334-40-7.
What are the molecular formula and molecular weight of 4-Nitro-1H-pyrazole-3-carboxylic acid?
4-Nitro-1H-pyrazole-3-carboxylic acid has molecular formula C4H3N3O4 and molecular weight 157.084 g/mol.
Is 4-Nitro-1H-pyrazole-3-carboxylic acid hazardous?
4-Nitro-1H-pyrazole-3-carboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 4-Nitro-1H-pyrazole-3-carboxylic acid?
For 4-Nitro-1H-pyrazole-3-carboxylic acid, Upstream Products: 3-Methylpyrazole; Downstream Products: ethyl 4-nitro-1H-pyrazole-3-carboxylate, Methyl 4-nitro-1H-pyrazole-3-carboxylate, 4-Amino-1H-pyrazole-3-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. "4-Nitro-1H-pyrazole-3-carboxylic acid (CAS 5334-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39224-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.