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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

TOKYO CHEMICAL INDUSTRY CO., LTD.
Tel
03-36680489
Fax
03-3668-0520
Email
Sales-JP@TCIchemicals.com
Country
Japan
ProdList
28387
Advantage
80
Midori Kagaku
Tel
--
Fax
--
Country
Japan
ProdList
104
Advantage
58
Kanto Chemical Co. Inc.
Tel
--
Fax
--
Email
kanto-61@gms.kanto.co.jp
Country
Japan
ProdList
530
Advantage
58
FUJIFILM Wako Pure Chemical Corporation
Tel
--
Fax
--
Email
ffwk-cservice@fujifilm.com
Country
Japan
ProdList
6222
Advantage
58
Midori Kagaku co.,ltd.
Tel
--
Fax
--
Email
midori@midori-kagaku.com
Country
Japan
ProdList
236
Advantage
64
Shigematsu & Co., Ltd
Tel
--
Fax
--
Email
info@shigematsu-bio.com
Country
Japan
ProdList
1066
Advantage
64
Kanto Chemical Co., Inc.
Tel
--
Fax
--
Email
reag-info@gms.kanto.co.jp
Country
Japan
ProdList
6756
Advantage
74
Wako Pure Chemical Industries, Ltd.
Tel
--
Fax
--
Email
labchem-tec@wako-chem.co.jp
Country
Japan
ProdList
6819
Advantage
80
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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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