Diphenylacetylene
Also known as: 1,1'-(1,2-Ethynediyl)bisbenzene, 1,1'-(1,2-Ethynediyl)dibenzene, 1,1'-Ethyne-1,2-diyldibenzene, 1,2-diphenyl ethyne, 1,2-diphenylethyne, 2-phenylethynylbenzene, Acetylene, diphenyl- (8CI), Benzene, 1,1'-(1,2-ethynediyl)bis-, EINECS 207-926-6, Ethyne, diphenyl-, MFCD00004786, R1UU1R, biphenylacetylene, tolane
Diphenylacetylene (CAS 501-65-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H10 and a molecular weight of 178.229 g/mol. Key properties include a melting point of 59-61 °C(lit.), a boiling point of 300.0±11.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 126.0±13.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 501-65-5
- Jingsj CID
- J-1332835-3
- Molecular Formula
- C14H10
- Molecular Weight
- 178.229 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 59-61 °C(lit.) |
|---|---|
| Boiling Point | 300.0±11.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 126.0±13.4 °C |
| Exact Mass | 178.078247 |
| LogP | 4.78 |
| Vapor Pressure | 0.0±0.3 mmHg at 25°C |
| Refractive Index | 1.623 |
Customs & Trade Information
| HS Code | 2902909090 |
|---|---|
| Summary | 2902909090 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 Diphenylacetylene?
The CAS number of Diphenylacetylene is 501-65-5.
What are the molecular formula and molecular weight of Diphenylacetylene?
Diphenylacetylene has molecular formula C14H10 and molecular weight 178.229 g/mol.
What are the upstream and downstream products of Diphenylacetylene?
For Diphenylacetylene, Upstream Products: Iodobenzene, Phenylpropiolic acid, Trimethylsilylacetylene; Downstream Products: Triphenylethylene, HEXAPHENYLBENZENE, Benzene,1,1',1'',1'''-(1,2-ethanediylidene)tetrakis-.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diphenylacetylene (CAS 501-65-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1332835-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.