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1644-87-7

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1644-87-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1644-87-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1644-87:
(6*1)+(5*6)+(4*4)+(3*4)+(2*8)+(1*7)=87
87 % 10 = 7
So 1644-87-7 is a valid CAS Registry Number.

1644-87-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-nitro-2-(trifluoromethylsulfanyl)benzene

1.2 Other means of identification

Product number -
Other names (2-nitrophenyl)(trifluoromethyl)sulfane

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:1644-87-7 SDS

1644-87-7Relevant articles and documents

THE INTRODUCTION OF SCF3 INTO AROMATIC SUBSTRATES USING CuSCF3 AND ALUMINA-SUPPORTED CuSCF3

Clark, James H.,Craig, W. Jones,Kybett, Adrian P.,McClinton, Martin A.,Miller, Jack M.,et al.

, p. 249 - 255 (1990)

Trifluoromethylthiocopper(I) has been readily prepared from the silver analogue, using a metathetical reaction with copper(I) bromide.Homogeneous CuSCF3 and the supported reagent CuSCF3-alumina have been compared in their reactivity towards aryl iodides, in order to form trifluoromethylaryl sulphides in good yields.

Transition-Metal-Free Synthesis of Aryl Trifluoromethyl Thioethers through Indirect Trifluoromethylthiolation of Sodium Arylsulfinate with TMSCF3

Zheng, Changge,Jiang, Chao,Huang, Shuai,Zhao, Kui,Fu, Yingying,Ma, Mingyu,Hong, Jianquan

supporting information, p. 6982 - 6986 (2021/09/08)

Herein, we report an indirect trifluoromethylthiolation of sodium arylsulfinates. This transition-metal-free reaction significantly provides an environmentally friendly and practical synthetic method for aryl trifluoromethyl thioethers using commercial Ruppert-Prakash reagent TMSCF3. This approach is also a potential alternative to the current industrial production method owing to facile substrates, excellent functional group compatibility, and operational simplicity.

Method for producing 4-fluoro-3-(trifluoromethylsulfonyl)benzenesulfonamide

-

Paragraph 0031, (2019/07/04)

The invention provides a method for producing 4-fluoro-3-(trifluoromethylsulfonyl)benzenesulfonamide. 2-nitroaniline is used as an initial raw material, is subjected to diazotization reaction, trifluoromethyl sulfonation reaction, fluoronation, chlorosulfonation reaction, and is reacted with ammonium hydroxide to finally produce the 4-fluoro-3-(trifluoromethylsulfonyl)benzenesulfonamide. Comparedwith reported synthesis methods, the method for producing the 4-fluoro-3-(trifluoromethylsulfonyl)benzenesulfonamide has the advantages that the reaction yield of the synthesis route is high, used reaction agents are economic and easy to obtain, reaction conditions are mild and controllable, and in a reaction process, column chromatography and purification are not needed, so that the method for producing the 4-fluoro-3-(trifluoromethylsulfonyl)benzenesulfonamide has wide commercial application prospects.

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