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20743-95-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20743-95-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,4 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20743-95:
97 % 10 = 7
So 20743-95-7 is a valid CAS Registry Number.



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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name 1-butoxy-4-methoxybenzene

1.2 Other means of identification

Product number -
Other names butylhydroxyanisol

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:20743-95-7 SDS

20743-95-7Relevant articles and documents


Edwards, Raymond L.,Anderson, John R.,Whalley, Anthony J. S.

, p. 1721 - 1724 (1982)

Culture solutions of the fungus Hypoxylon chestersii contain a new allenic ether which has been identified as 4-(4-methoxyphenoxy)buta-1,2-diene.The synthesis of the metabolite is described.This is the first report of the natural occurrence of an aromatic allenic ether. - Key Word Index: Hypoxylon chestersii; fungal metabolite; allenic ether; chestersiene.

Light-Promoted Nickel Catalysis: Etherification of Aryl Electrophiles with Alcohols Catalyzed by a NiII-Aryl Complex

Cao, Rui,Lai, Chu-Hui,Li, Gang,Liu, Fengyi,Lu, Huan-Huan,Wang, Chao,Xiao, Jianliang,Xue, Dong,Yang, Liu,Zhang, Wei

supporting information, p. 12714 - 12719 (2020/06/02)

A highly effective C?O coupling reaction of (hetero)aryl electrophiles with primary and secondary alcohols is reported. Catalyzed by a NiII-aryl complex under long-wave UV (390–395 nm) irradiation in the presence of a soluble amine base without any additional photosensitizer, the reaction enables the etherification of aryl bromides and aryl chlorides as well as sulfonates with a wide range of primary and secondary aliphatic alcohols, affording synthetically important ethers. Intramolecular C?O coupling is also possible. The reaction appears to proceed via a NiI–NiIII catalytic cycle.

Reductive C-O, C-N, and C-S Cleavage by a Zirconium Catalyzed Hydrometalation/β-Elimination Approach

Matt, Christof,K?lblin, Frederic,Streuff, Jan

supporting information, p. 6983 - 6988 (2019/09/09)

A zirconium catalyzed reductive cleavage of Csp3 and Csp2 carbon-heteroatom bonds is reported that makes use of a tethered alkene functionality as a traceless directing group. The reaction is successfully demonstrated on C-O, C-N, and C-S bonds and proposed to proceed via a hydrozirconation/β-heteroatom elimination sequence of an in situ formed zirconium hydride catalyst. The positional isomerization of the catalyst further enables the cleavage of homoallylic ethers and the removal of terminal allyl and propargyl groups.

Simple N-Heterocyclic Carbenes as Ligands in Ullmann-Type Ether and Thioether Formations

Wu, Jiang-Ping,Saha, Anjan K.,Haddad, Nizar,Busacca, Carl A.,Lorenz, Jon C.,Lee, Heewon,Senanayake, Chris H.

supporting information, p. 1924 - 1928 (2016/07/06)

A simple N-heterocyclic carbene (NHC) derived from 1-methyl-3-ethylimidazolium tetrafluoroborate was found to be an efficient ligand for a range of copper-catalyzed cross-coupling reactions, leading to the formation of aromatic ethers and thioethers. (Figure presented.) .

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