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3,5-Diphenylpyrazole

Also known as: 3,5-diphenyl-1H-pyrazole, 1H-Pyrazole, 3,5-diphenyl-, Pyrazole, 3,5-diphenyl-, EINECS 214-543-8, MFCD00039675, NSC 126937

3,5-Diphenylpyrazole (CAS 1145-01-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C15H12N2 and a molecular weight of 220.269 g/mol. Key properties include a melting point of 199-203ºC(lit.), a boiling point of 442.7±14.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 207.2±13.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1145-01-3
Jingsj CID
J-24608-2
Molecular Formula
C15H12N2
Molecular Weight
220.269 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point199-203ºC(lit.)
Boiling Point442.7±14.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point207.2±13.1 °C
Exact Mass220.100052
PSA28.68000
LogP4.42
AppearanceCrystalline Powder | White
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.628

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation
  • H413

Customs & Trade Information

HS Code2933199090
Summary2933199090. 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 3,5-Diphenylpyrazole?

The CAS number of 3,5-Diphenylpyrazole is 1145-01-3.

What are the molecular formula and molecular weight of 3,5-Diphenylpyrazole?

3,5-Diphenylpyrazole has molecular formula C15H12N2 and molecular weight 220.269 g/mol.

Is 3,5-Diphenylpyrazole hazardous?

3,5-Diphenylpyrazole has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.

What are the upstream and downstream products of 3,5-Diphenylpyrazole?

For 3,5-Diphenylpyrazole, Upstream Products: Dibenzoylmethane, Chalcone, 3,5-Diphenyl-4,5-dihydro-1H-pyrazole; Downstream Products: 1H-Indene, 3-phenyl-, 2-Phenylindene, Benzonitrile.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,5-Diphenylpyrazole (CAS 1145-01-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24608-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.