3-(Trifluoromethyl)-1H-pyrazole
Also known as: 3-(Trifluoromethyl)pyrazole, 3-CF3-pyrazole, 1H-Pyrazole, 3-(trifluoromethyl)-, AKOS PAO-1199, BUTTPARK 29 8-71, TRIFLUOROMETHYLPYRAZOLE
3-(Trifluoromethyl)-1H-pyrazole (CAS 20154-03-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3F3N2 and a molecular weight of 136.075 g/mol. Key properties include a melting point of 45-47 °C(lit.), a boiling point of 177.7±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 61.3±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.
- 20154-03-4
- Jingsj CID
- J-6132-5
- Molecular Formula
- C4H3F3N2
- Molecular Weight
- 136.075 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 45-47 °C(lit.) |
|---|---|
| Boiling Point | 177.7±35.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 61.3±25.9 °C |
| Exact Mass | 136.024826 |
| PSA | 28.68000 |
| LogP | 1.29 |
| Vapor Pressure | 1.4±0.3 mmHg at 25°C |
| Refractive Index | 1.417 |
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 3-(Trifluoromethyl)-1H-pyrazole?
The CAS number of 3-(Trifluoromethyl)-1H-pyrazole is 20154-03-4.
What are the molecular formula and molecular weight of 3-(Trifluoromethyl)-1H-pyrazole?
3-(Trifluoromethyl)-1H-pyrazole has molecular formula C4H3F3N2 and molecular weight 136.075 g/mol.
Is 3-(Trifluoromethyl)-1H-pyrazole hazardous?
3-(Trifluoromethyl)-1H-pyrazole 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 3-(Trifluoromethyl)-1H-pyrazole?
For 3-(Trifluoromethyl)-1H-pyrazole, Upstream Products: (E)-4-ethoxy-1,1,1-trifluorobut-3-en-2-one, (3Z)-4-Ethoxy-1,1,1-trifluoro-3-buten-2-one, Hydrazine monohydrochloride; Downstream Products: 1-Phenyl-3-(trifluoromethyl)-1H-pyrazole, 1-Ethyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid, 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. "3-(Trifluoromethyl)-1H-pyrazole (CAS 20154-03-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6132-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.