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204334-80-5

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204334-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204334-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,3,3 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 204334-80:
(8*2)+(7*0)+(6*4)+(5*3)+(4*3)+(3*4)+(2*8)+(1*0)=95
95 % 10 = 5
So 204334-80-5 is a valid CAS Registry Number.

204334-80-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-bromo-2-(1-hexynyl)benzene

1.2 Other means of identification

Product number -
Other names 1-bromo-2-(hex-1-ynyl)benzene

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:204334-80-5 SDS

204334-80-5Relevant articles and documents

Metal-Free Aminoiodination of Alkynes Under Visible Light Irradiation for the Construction of a Nitrogen-Containing Eight-Membered Ring System

Kanyiva, Kyalo Stephen,Marina, Tane,Nishibe, Shun,Shibata, Takanori

supporting information, p. 2746 - 2751 (2021/04/05)

A method for the synthesis of dihydrodibenzo[c,e]azocine derivatives via a regioselective intramolecular aminoiodination of alkynes under visible light irradiation has been developed. This protocol uses a combination of iodine and hypervalent iodine to re

Selective Synthesis of Phenanthrenes and Dihydrophenanthrenes via Gold-Catalyzed Cycloisomerization of Biphenyl Embedded Trienynes

Milián, Ana,Garciá-Garciá, Patricia,Pérez-Redondo, Adrián,Sanz, Roberto,Vaquero, Juan J.,Fernández-Rodríguez, Manuel A.

supporting information, p. 8464 - 8469 (2020/11/02)

Readily available o′-alkenyl-o-alkynylbiaryls, a particular type of 1,7-enynes, undergo a selective cycloisomerization reaction in the presence of a gold(I) catalyst to give interesting phenanthrene and dihydrophenanthrene derivatives in high yields. The solvent used provokes a switch in the evolution of the gold intermediate and plays a key role in the reaction outcome.

Synthesis of Naphthalenyl Triflates via the Cationic Annulation of Benzodiynes with Triflic Acid

Ge, Chenxin,Wang, Guohua,Wu, Panpan,Chen, Chao

supporting information, p. 5010 - 5014 (2019/07/08)

A highly efficient and regioselective annulation of benzodiynes promoted by triflic acid has been developed. This protocol provides a step and atom-economic access to a series of naphthalenyl triflates. Furthermore, direct synthetic applications of this r

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