1,5-Dimethyl-1H-pyrazole
Also known as: 1,5-Dimethylpyrazole, 1,5-dimethylpyrazole, 1,5-dimethyl-1H-pyrazole, 1,5-Dimethyl-1H-pyrazol
1,5-Dimethyl-1H-pyrazole (CAS 694-31-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N2 and a molecular weight of 96.13300 g/mol. Key properties include a boiling point of 505.6±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 291.1±12.9 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 694-31-5
- Jingsj CID
- J-1090627-1
- Molecular Formula
- C5H8N2
- Molecular Weight
- 96.13300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 505.6±40.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 291.1±12.9 °C |
| Exact Mass | 276.022095 |
| PSA | 17.82000 |
| LogP | 4.99 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.689 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
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 1,5-Dimethyl-1H-pyrazole?
The CAS number of 1,5-Dimethyl-1H-pyrazole is 694-31-5.
What are the molecular formula and molecular weight of 1,5-Dimethyl-1H-pyrazole?
1,5-Dimethyl-1H-pyrazole has molecular formula C5H8N2 and molecular weight 96.13300 g/mol.
Is 1,5-Dimethyl-1H-pyrazole hazardous?
1,5-Dimethyl-1H-pyrazole has GHS signal word Danger and hazard statements H301 — Toxic if swallowed.
What are the upstream and downstream products of 1,5-Dimethyl-1H-pyrazole?
For 1,5-Dimethyl-1H-pyrazole, Upstream Products: 4,4-Dimethoxy-2-butanone, 3-Methylpyrazole, Dimethyl sulfate; Downstream Products: 1-Methyl-4-nitro-1H-pyrazole-5-carboxylic acid, 1H-Pyrazole-5-carboxamide, 4-amino-1-methyl- (9CI), Benzoic anhydride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,5-Dimethyl-1H-pyrazole (CAS 694-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1090627-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.