ChemicalBook > CAS DataBase List > Diphenylacetylene

Diphenylacetylene

Product Name
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
Formula Weight
178.23
MOL File
501-65-5.mol
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Diphenylacetylene Property

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)
NIST Chemistry Reference
Diphenylethyne(501-65-5)
EPA Substance Registry System
Benzene, 1,1'-(1,2-ethynediyl)bis- (501-65-5)
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Safety

Safety Statements 
24/25-22
WGK Germany 
3
TSCA 
Yes
HS Code 
29029090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
D204803
Product name
Diphenylacetylene
Purity
98%
Packaging
5g
Price
$61.7
Updated
2024/03/01
Sigma-Aldrich
Product number
D204803
Product name
Diphenylacetylene
Purity
98%
Packaging
25g
Price
$249
Updated
2024/03/01
TCI Chemical
Product number
D0871
Product name
Diphenylacetylene
Purity
>98.0%(GC)
Packaging
25g
Price
$157
Updated
2024/03/01
Alfa Aesar
Product number
A13979
Product name
Diphenylacetylene, 99%
Packaging
5g
Price
$32.9
Updated
2024/03/01
Alfa Aesar
Product number
A13979
Product name
Diphenylacetylene, 99%
Packaging
25g
Price
$71.2
Updated
2024/03/01
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Diphenylacetylene Chemical Properties,Usage,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

Iodobenzene Palladium (II) Acetate Acetonitrile Ethanol Potassium hydroxide Calcium chloride Cuprous iodide TRANS-STILBENE Triethylamine Hexadecyl trimethyl ammonium bromide (FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE Benzyl bromide Tetrahydrofuran Palladium chloride 1,2-Diphenylethylenediamine Government regulation Dichloromethane Triphenylphosphine N,N-Dimethylacetamide Phenylacetylene Lithium chloride

Preparation Products

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Diphenylacetylene Suppliers

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View Lastest Price from Diphenylacetylene manufacturers

Career Henan Chemical Co
Product
Diphenylacetylene 501-65-5
Price
US $1.00/KG
Min. Order
1KG
Purity
95%-99%
Supply Ability
1000kg
Release date
2018-12-24

501-65-5, DiphenylacetyleneRelated Search:

o-Phenylenediamine p-Phenylenediamine tert-Butylchlorodiphenylsilane ETHYNYLFERROCENE Benzophenone 1,3-Diphenyl-2-thiourea Diphenyl ether Diphenylmethane polyphenylacetylene Dichlorodiphenylsilane Diphenylsilane Chlorodiphenylphosphine Diphenylphosphine Bis(2-ethylhexyl) phthalate Diphenyldimethoxysilane Phthalic acid Phenylacetylene Isophthalic acid

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