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4-Ethynylphenyl ether, also known as 4-ethynylphenol or 4-ethynylphenyl, is an organic compound characterized by the chemical formula C8H6O. It is a phenyl ether derivative that features an ethynyl group, which is a triple-bonded carbon positioned at the 4th position on the phenyl ring. 4-Ethynylphenyl ether is recognized for its unique reactivity and structure, making it a valuable building block in organic synthesis. It is typically a colorless to pale yellow liquid with a pungent odor and is acknowledged as a potential environmental contaminant. Its applications and uses are diverse and can vary significantly depending on the specific industry and research context in which it is utilized.

21368-80-9

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21368-80-9 Usage

Uses

Used in Organic Synthesis:
4-Ethynylphenyl ether is used as a building block in organic synthesis for its unique reactivity and structure, which allows for the creation of a wide range of pharmaceuticals, dyes, and other organic compounds.
Used in Pharmaceutical Production:
In the pharmaceutical industry, 4-Ethynylphenyl ether is utilized as a key intermediate in the synthesis of various drugs, contributing to the development of new medications due to its specific chemical properties.
Used in Dye Manufacturing:
4-Ethynylphenyl ether is also employed in the production of dyes, where its ethynyl group and phenyl ether structure provide distinctive color characteristics and properties.
Used in Environmental Research:
Given its classification as a potential environmental contaminant, 4-Ethynylphenyl ether is studied in environmental research to understand its behavior, impact, and methods of mitigation in various ecosystems.
Used in Chemical Research:
4-Ethynylphenyl ether serves as a subject of interest in chemical research, where its properties and reactivity are explored to advance the understanding of organic chemistry and potentially discover new applications.

Check Digit Verification of cas no

The CAS Registry Mumber 21368-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,6 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21368-80:
(7*2)+(6*1)+(5*3)+(4*6)+(3*8)+(2*8)+(1*0)=99
99 % 10 = 9
So 21368-80-9 is a valid CAS Registry Number.

21368-80-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-ethynyl-4-(4-ethynylphenoxy)benzene

1.2 Other means of identification

Product number -
Other names p,p'-diethynyldiphenylether

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:21368-80-9 SDS

21368-80-9Relevant academic research and scientific papers

Spatial extent of the singlet and triplet excitons in luminescent angular-shaped transition-metal diynes and polyynes comprising non-π-conjugated Group 16 main group elements

Poon, Suk-Yue,Wong, Wai-Yeung,Cheah, Kok-Wai,Shi, Jian-Xin

, p. 2550 - 2563 (2006)

A novel approach based on conjugation interruption has been developed and is presented for a series of luminescent and thermally stable chalcogen-bridged platinum(II) polyyne polymers trans-[{-Pt(PBu3)2C≡C- (C6H4/sub

Cu-catalyzed synthesis of symmetric group 6 (Fischer) bis-carbene complexes

Lopez-Alberca, Maria P.,Mancheno, Maria J.,Fernandez, Israel,Gomez-Gallego, Mar,Sierra, Miguel A.

, p. 365 - 368 (2008/09/19)

The efficient copper oxidative homocoupling (CuCl/TMEDA/O2) of alkynyl Fischer carbene complexes yields bis-carbene complexes having π-tethers. The bimetallic complexes are exceptional templates to prepare diverse organic symmetric structures c

Synthesis of ethynyl end-capped oligo-aryl ethers

Xu, Jinfeng,Lai, Guo-Qiao,Wang, Cheng-Yun,Shen, Yong-Jia

, p. 572 - 574 (2007/10/03)

A series of aryl ether oligomers end-capped with ethynyl groups have been synthesised via a three-step process, i.e. iodination of oligo-aryl ethers, nucleophilic substitution of the iodide group with 2-methyl-3-butyn-2-ol catalysed by Pd/Cu and subsequen

The 'Inverse Electron-demand' Diels-Ader Reaction in Polymer Synthesis. Part 1. A Convenient Synthetic Route to Diethynyl Aromatic Compounds

Royles, Brodyck J. L.,Smith, David M.

, p. 355 - 358 (2007/10/02)

The simple procedure whereby acetophenone derivatives are converted, by reaction with phosphoryl chloride and N,N-dimethylformamide, into β-chlorocinnamaldehydes, and thence, by base-induced elimination, into ethynylarenes, has been extended to diketones of the type MeCOC6H4COMe (m- and p-) and (p-MeCOC6H4)2X (X = O, S, SO2, CH2, CO, or a single bond): the corresponding diethynyl compounds are obtained by this route in acceptable yield. 1,3,5-Triacetylbenzene is similarly converted into 1,3,5-triethynylbenzene.

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