(Phenylethynyl)benzene
Diphenylacetylene
CAS: 501-65-5
Molecular Formula: C14H10
(Phenylethynyl)benzene - Names and Identifiers
| Name | Diphenylacetylene |
| Synonyms | Tolan TOLAN DIPHENYLACETYLENE Diphenylacetylene 1,2-DIPHENYL ETHYNE 1,2-Diphenylacetylene (phenylethynyl)benzene (Phenylethynyl)benzene 1,2-Ethynediylbisbenzene Diphenyl acetylene (Tolan) 1,1'-ethyne-1,2-diyldibenzene 1,1'-(1,2-Ethanediyl)bisbenzene 1,1'-(1,2-Ethynediyl)bisbenzene 1,1'-(1,2-ethynediyl)bis-benzen |
| CAS | 501-65-5 |
| EINECS | 207-926-6 |
| InChI | InChI=1/C12H10.C2H2/c1-3-7-11(8-4-1)12-9-5-2-6-10-12;1-2/h1-10H;1-2H |
| InChIKey | JRXXLCKWQFKACW-UHFFFAOYSA-N |
(Phenylethynyl)benzene - Physico-chemical Properties
| Molecular Formula | C14H10 |
| Molar Mass | 178.23 |
| Density | 0.99 g/mL at 25 °C (lit.) |
| Melting Point | 59-61 °C (lit.) |
| Boling Point | 170 °C/19 mmHg (lit.) |
| Flash Point | 170°C/19mm |
| Water Solubility | Miscible with ether and hot alcohol. Immiscible with water. |
| Appearance | Crystallization |
| Specific Gravity | 0.99 |
| Color | Light yellow to brownish |
| Merck | 14,9504 |
| BRN | 606478 |
| Storage Condition | Sealed in dry,2-8°C |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.6415 (estimate) |
| MDL | MFCD00004786 |
| Physical and Chemical Properties | Colorless patchy crystals. Melting point 62.5 °c (60-61 °c), boiling point 300 °c, 170 °c (2.53kPa),90-97 °c (40Pa), relative density 0.966(100/4 °c). Soluble in hot ethanol and ether, insoluble in water. |
| Use | for organic synthesis. |
(Phenylethynyl)benzene - Risk and Safety
| Safety Description | S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29029090 |
(Phenylethynyl)benzene - Introduction
Soluble in hot ethanol and ether, insoluble in water.
Last Update：2022-10-16 17:25:36
(Phenylethynyl)benzene - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Overview | The alkyne derivative diphenylacetylene occupies an important position in organic synthesis. Many natural products, drug molecules and polymeric materials contain alkyne structures or are synthesized from simple alkyne compounds. Therefore, a large number of methods for synthesizing alkyne derivatives came into being. |
| use | for organic synthesis. |
| production method | is obtained by brominating stilbene and then reacting with potassium hydroxide. |
Last Update：2024-04-09 19:05:12
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