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Diphenyl ether

Also known as: Diphenyl oxide, Phenyl ether, Oxydibenzene, 1,1'-Oxybisbenzene, Phenoxybenzene, Biphenyl oxide, Phenyl oxide, Dephenyl oxide, Diphenylether, EINECS 202-981-2, FEMA 3667, MFCD00003034, Oxybisbenzene, Oxydibenzol, Oxydiphenyl, Chemcryl JK-EB, AKOS 90362, AKOS BBS-00004250, biphenyloxide, ether, diphenyl

Diphenyl ether (CAS 101-84-8) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C12H10O and a molecular weight of 170.21 g/mol. Key properties include a melting point of 26-30 ºC, a boiling point of 259 ºC, a density of 1.073 and a flash point of 115 ºC. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
101-84-8
Jingsj CID
J-26481-1
Molecular Formula
C12H10O
Molecular Weight
170.21 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Melting Point26-30 ºC
Boiling Point259 ºC
Density1.073
Flash Point115 ºC
Exact Mass170.073166
PSA9.23000
LogP4.21
Additional Property>5.86 (25 °C, vs air)
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.5795-1.5815
Additional Propertyinsoluble
Additional Property27℃

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H319 — Causes serious eye irritation
  • H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diphenyl ether?

The CAS number of Diphenyl ether is 101-84-8.

What are the molecular formula and molecular weight of Diphenyl ether?

Diphenyl ether has molecular formula C12H10O and molecular weight 170.21 g/mol.

Is Diphenyl ether hazardous?

Diphenyl ether has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H411 — Toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Diphenyl ether?

For Diphenyl ether, Upstream Products: Chlorobenzene, Phenol, Iodobenzene; Downstream Products: 4-(4-phenoxyphenyl)-1,3-thiazol-2-amine, 2,2-Dichloro-1-(4-phenoxyphenyl)ethanone, 2,2'-Oxydibenzaldehyde.

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

Last updated:

How to cite: Jingsj. "Diphenyl ether (CAS 101-84-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26481-1 (accessed 2026-11-06).

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