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21900-43-6

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21900-43-6 Usage

General Description

4-FLUORO-2-METHYLBENZOYL CHLORIDE 99 is a chemical compound that is 99% pure and is typically used in organic synthesis and pharmaceutical research. It is a benzoyl chloride derivative with a fluorine and a methyl group attached to the benzene ring. 4-FLUORO-2-METHYLBENZOYL CHLORIDE 99 is a highly reactive acylating agent that is commonly used in the synthesis of various pharmaceutical drugs and organic compounds. It is important to handle this chemical with care due to its reactivity and potential hazards.

Check Digit Verification of cas no

The CAS Registry Mumber 21900-43-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,0 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21900-43:
(7*2)+(6*1)+(5*9)+(4*0)+(3*0)+(2*4)+(1*3)=76
76 % 10 = 6
So 21900-43-6 is a valid CAS Registry Number.
InChI:InChI=1/C8H6ClFO/c1-5-4-6(10)2-3-7(5)8(9)11/h2-4H,1H3

21900-43-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-fluoro-2-methylbenzoyl chloride

1.2 Other means of identification

Product number -
Other names 4-Fluoro-o-toluoyl chloride

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:21900-43-6 SDS

21900-43-6Relevant articles and documents

Cu(II)-Catalyzed 6π-Photocyclization of Non-6πSubstrates

Zhang, Yanbin,Jin, Ruiwen,Kang, Wenjie,Guo, Hao

supporting information, p. 5502 - 5505 (2020/07/08)

This research successfully achieved a Cu(II)-catalyzed 6π-photocyclization of non-6πsubstrates. The photoenolization converts ortho-alkylphenyl alkynl ketones into a triene-type intermediate which undergoes the subsequent 6π-photocyclization to give napht

Palladium-Catalyzed Electrochemical C-H Bromination Using NH4Br as the Brominating Reagent

Yang, Qi-Liang,Wang, Xiang-Yang,Wang, Tong-Lin,Yang, Xiang,Liu, Dong,Tong, Xiaofeng,Wu, Xin-Yan,Mei, Tian-Sheng

supporting information, p. 2645 - 2649 (2019/04/17)

The palladium-catalyzed electrochemical C-H bromination of benzamide derivatives under divided cells is developed, in which NH4Br serves as a brominating reagent and electrolyte. The protocol avoids the use of chemical oxidants and provides an alternative method for the synthesis of aryl bromides.

C?O Activation by a Rhodium Bis(N-Heterocyclic Carbene) Catalyst: Aryl Carbamates as Arylating Reagents in Directed C?H Arylation

Tobisu, Mamoru,Yasui, Kosuke,Aihara, Yoshinori,Chatani, Naoto

supporting information, p. 1877 - 1880 (2017/02/05)

Despite recent progress in the catalytic transformation of inert phenol derivatives as alternatives to aryl halides and triflates, attempts at the cross-coupling of inert phenol derivatives with the C?H bonds of arenes have met with limited success. Herein, we report the rhodium-catalyzed cross-coupling of aryl carbamates with arenes bearing a convertible directing group. The key to success is the use of an in situ generated rhodium bis(N-heterocyclic carbene) species as the catalyst, which can promote activation of the inert C(sp2)?O bond in aryl carbamates.

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