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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.]

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Diphenylacetylene Suppliers

Dafeng Newti Pharmaceutical Technology Co., Ltd.
Tel
18015586221
Email
2760994703@qq.com
Country
China
ProdList
299
Advantage
55
Xi'an Kaimeike New Material Co., Ltd.
Tel
13720451009
Email
13720451009@163.com
Country
China
ProdList
152
Advantage
58
Shanghai Chemilab Biotechnology CO.,Ltd
Tel
18116465878
Email
kmlb@kaimilaibo.com
Country
China
ProdList
2373
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
BeiJing Hwrk Chemicals Limted
Tel
0757-86329057 18501085097
Fax
010-89508210
Email
sales3.gd@hwrkchemical.com
Country
China
ProdList
7508
Advantage
55
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Beijing Ouhe Technology Co., Ltd
Tel
010-82967028 13552068683
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12426
Advantage
60
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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

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