Diphenylacetylene
- CAS No.
- 501-65-5
- Chemical Name:
- Diphenylacetylene
- Synonyms
- Tolane;Diphenylethyne;1,2-Diphenylacetylene;TOLAN;Diphenilethyne;ethyne,diphenyl-;DIPHENYLACETYLENE;biphenylacetylene;Ethyne, diphenyl-;1,2-DIPHENYL ETHYNE
- CBNumber:
- CB6198660
- Molecular Formula:
- C14H10
Crystal structure
- Molecular Weight:
- 178.23
- MDL Number:
- MFCD00004786
- MOL File:
- 501-65-5.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Diphenylacetylene 98% | D204803 | 5g | $67.8 |
| Diphenylacetylene 98% | D204803 | 25g | $274 |
| Diphenylacetylene >98.0%(GC) | D0871 | 25g | $163 |
| Diphenylacetylene, 99% 99% | 06-0550 | 2g | $33 |
| Diphenylacetylene, 99% 99% | 06-0550 | 10g | $94 |
| More product size | |||
| Melting point | 59-61 °C (lit.) |
|---|---|
| Boiling point | 170 °C/19 mmHg (lit.) |
| Density | 0.99 g/mL at 25 °C (lit.) |
| refractive index | 1.6415 (estimate) |
| Flash point | 170°C/19mm |
| storage temp. | Sealed in dry,2-8°C |
| form | Crystalline Powder and Chunks |
| Specific Gravity | 0.99 |
| color | Light yellow to brownish |
| Water Solubility | Miscible with ether and hot alcohol. Immiscible with water. |
| Merck | 14,9504 |
| BRN | 606478 |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| InChI | 1S/C14H10/c1-3-7-13(8-4-1)11-12-14-9-5-2-6-10-14/h1-10H |
| InChIKey | JRXXLCKWQFKACW-UHFFFAOYSA-N |
| SMILES | c1ccc(cc1)C#Cc2ccccc2 |
| CAS DataBase Reference | 501-65-5(CAS DataBase Reference) |
| FDA UNII | Y70JA8HB75 |
| NIST Chemistry Reference | Diphenylethyne(501-65-5) |
| EPA Substance Registry System | Benzene, 1,1'-(1,2-ethynediyl)bis- (501-65-5) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H335-H319 | |||||||||
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Safety Statements | 24/25-22 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29029090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Diphenylacetylene price More Price(19)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | D204803 | Diphenylacetylene 98% | 501-65-5 | 5g | $67.8 | 2026-04-30 | Buy |
| Sigma-Aldrich | D204803 | Diphenylacetylene 98% | 501-65-5 | 25g | $274 | 2026-04-30 | Buy |
| TCI Chemical | D0871 | Diphenylacetylene >98.0%(GC) | 501-65-5 | 25g | $163 | 2026-04-30 | Buy |
| Strem Chemicals | 06-0550 | Diphenylacetylene, 99% 99% | 501-65-5 | 2g | $33 | 2026-04-30 | Buy |
| Strem Chemicals | 06-0550 | Diphenylacetylene, 99% 99% | 501-65-5 | 10g | $94 | 2026-04-30 | Buy |
Diphenylacetylene Chemical Properties,Uses,Production
Chemical Properties
white crystals
Uses
Organic synthesis, purified grade, primary fluor or wavelength shifter in soluble scintillators.
Uses
Diphenylacetylene is often used as a building block in organic and organometallic chemistry. It acts as dienophile and under goes Diels-Alder reaction with tetraphenylcyclopentadienone to prepare hexaphenylbenzene. It acts as a precursor in the preparation of 3-alkoxycyclopropene by reacting with benzal chloride in the presence of potassium t-butoxide.
Definition
ChEBI: An arylacetylene that is acetylene in which the hydrogens are replaced by phenyl groups.
Synthesis Reference(s)
Canadian Journal of Chemistry, 61, p. 86, 1983 DOI: 10.1139/v83-015
Journal of the American Chemical Society, 87, p. 863, 1965 DOI: 10.1021/ja01082a029
The Journal of Organic Chemistry, 51, p. 3830, 1986 DOI: 10.1021/jo00370a016
Purification Methods
Crystallise tolan from EtOH. [Beilstein 5 H 656, 5 IV 2276.]
Diphenylacetylene Preparation Products And Raw materials
Raw materials
1of5
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21590 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29819 | 58 |
| Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd. | 0431-80514535 13634302652 | Extension@chemextension.com | CHINA | 967 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8828 | 58 |
| Shanghai Daeyeon Chemicals Co., Ltd | 021-64478606 +8615900664856 | daeyeon001@vip.163.com | China | 2062 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10236 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| HONG KONG IPURE BIOLOGY CO.,LIMITED | 86 18062405514 18062405514 | ada@ipurechemical.com | CHINA | 3461 | 58 |
| Win-Win chemical CO., Limited | +86-0086-577-64498589 +86-15355981851 | sales@win-winchemical.com | China | 14304 | 58 |
View Lastest Price from Diphenylacetylene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-12-01 | Diphenylacetylene
501-65-5
|
US $0.00 / kg | 1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | |
 |
2019-07-06 | Diphenylacetylene
501-65-5
|
US $1.00 / KG | 1KG | 95%-99% | 1000kg | Career Henan Chemical Co |
-
- Diphenylacetylene
501-65-5
- US $0.00 / kg
- 99%
- Shaanxi Dideu New Materials Co. Ltd
-
- Diphenylacetylene
501-65-5
- US $1.00 / KG
- 95%-99%
- Career Henan Chemical Co
