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2,5-Diphenyloxazole

Also known as: DPO, PPO, 2,5-Diphenyl-1,3-oxazole, Oxazole, 2,5-diphenyl-, 2,5-Diphenyloxazole [for scintillation spectrometry], EINECS 202-181-3, MFCD00005306

2,5-Diphenyloxazole (CAS 92-71-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H11NO and a molecular weight of 221.254 g/mol. Key properties include a melting point of 72-74 °C(lit.), a boiling point of 360.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 162.3±21.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H319 — Causes serious eye irritation and H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
92-71-7
Jingsj CID
J-1966369-0
Molecular Formula
C15H11NO
Molecular Weight
221.254 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point72-74 °C(lit.)
Boiling Point360.0±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point162.3±21.9 °C
Exact Mass221.084061
PSA26.03000
LogP4.12
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.586
StabilityStable. Incompatible with strong oxidizing agents.
Additional PropertyNEGLEGIBLE

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation
  • H413

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 2,5-Diphenyloxazole?

The CAS number of 2,5-Diphenyloxazole is 92-71-7.

What are the molecular formula and molecular weight of 2,5-Diphenyloxazole?

2,5-Diphenyloxazole has molecular formula C15H11NO and molecular weight 221.254 g/mol.

Is 2,5-Diphenyloxazole hazardous?

2,5-Diphenyloxazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation; H413.

What are the upstream and downstream products of 2,5-Diphenyloxazole?

For 2,5-Diphenyloxazole, Upstream Products: Benzylamine, trans-Chalcone, N-(2-oxo-2-phenylethyl)benzamide; Downstream Products: (S)-2-Benzylamino-1-phenylethanol, 9H FLUORENE, Phenanthrene.

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

Last updated:

How to cite: Jingsj. "2,5-Diphenyloxazole (CAS 92-71-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1966369-0 (accessed 2026-11-06).

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