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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
Molecular Weight:
178.23
MDL Number:
MFCD00004786
MOL File:
501-65-5.mol
MSDS File:
SDS
Last updated:2023-05-04 15:12:50

Diphenylacetylene Properties

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
color Light yellow to brownish
Specific Gravity 0.99
Water Solubility Miscible with ether and hot alcohol. Immiscible with water.
Merck 14,9504
BRN 606478
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey JRXXLCKWQFKACW-UHFFFAOYSA-N
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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
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
Safety Statements  24/25-22
WGK Germany  3
TSCA  Yes
HS Code  29029090
NFPA 704
1
0 0

Diphenylacetylene price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D204803 Diphenylacetylene 98% 501-65-5 5g $61.7 2024-03-01 Buy
Sigma-Aldrich D204803 Diphenylacetylene 98% 501-65-5 25g $249 2024-03-01 Buy
TCI Chemical D0871 Diphenylacetylene >98.0%(GC) 501-65-5 25g $157 2024-03-01 Buy
Alfa Aesar A13979 Diphenylacetylene, 99% 501-65-5 5g $32.9 2024-03-01 Buy
Alfa Aesar A13979 Diphenylacetylene, 99% 501-65-5 25g $71.2 2024-03-01 Buy
Product number Packaging Price Buy
D204803 5g $61.7 Buy
D204803 25g $249 Buy
D0871 25g $157 Buy
A13979 5g $32.9 Buy
A13979 25g $71.2 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.]

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View Lastest Price from Diphenylacetylene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Diphenylacetylene pictures 2019-07-06 Diphenylacetylene
501-65-5
US $1.00 / KG 1KG 95%-99% 1000kg Career Henan Chemical Co
DIPHENYLACETYLENE 1,2-DIPHENYL ETHYNE 1,2-Ethynediylbisbenzene Diphenylacetylene ,98.5% Diphenylacetylene 1g [501-65-5] DIPHENYLACETYLENE 98% TOLAN (Phenylethynyl)benzene 1,1'-(1,2-Ethanediyl)bisbenzene 1,1’-(1,2-ethynediyl)bis-benzen Diphenylacetylene,99% Diphenilethyne Diphenylacetylene, 99% 25GR Diphenylacetylene, 99% 5GR 1,1’-(1,2-Ethynediyl)bisbenzene Acetylene, diphenyl- acetylene,diphenyl- Benzene, 1,1'-(1,2-ethynediyl)bis- biphenylacetylene Ethyne, diphenyl- ethyne,diphenyl- SYM-DIPHENYLACETYLENE DIPHENYLACETYLENE, FOR SCINTILLATION TIANFU-CHEM - Diphenylacetylene (2-phenylethynyl)benzene Diphenylacetylene, 99%, for synthesis Diphenylacetylene> DIPHENYLACETYLENE, 98%DIPHENYLACETYLENE, 98%DIPHENYLACETYLENE, 98%DIPHENYLACETYLENE, 98% 1,2-Diphenylacetylene Diphenylethyne Tolane 501-65-5 C6H5C C6H5CCC6H5 C6H5C8801CC6H5 Alkynes Building Blocks Organic Building Blocks Internal Acetylenes Acetylenic Hydrocarbons having Benzene Ring Thiazoles Pharmaceutical Intermediates Acetylenes Acetylenic Hydrocarbons having Benzene Ring