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2-Benzylsulfanyl-5-(4-chloro-benzenesulfonyl)-[1,3,4]thiadiazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

187744-69-0

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187744-69-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187744-69-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,7,4 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 187744-69:
(8*1)+(7*8)+(6*7)+(5*7)+(4*4)+(3*4)+(2*6)+(1*9)=190
190 % 10 = 0
So 187744-69-0 is a valid CAS Registry Number.

187744-69-0Downstream Products

187744-69-0Relevant academic research and scientific papers

Syntheses of arylsulfonyl-1,3,4-thiadiazoles

Shafiee,Foroumadi

, p. 1611 - 1614 (2007/10/03)

Reaction of sodium arylsulfinate with 2-aryl-5-chloro-1,3,4-thiadiazole gave 2-aryl-5-arylsulfonyl-1,3,4-thiadiazole (3) in good yield. Starting from readily available 2-amino-5-benzylmercapto-1,3,4-thiadiazole compound 7 was obtained in three steps in moderate yield. Reaction of compound 7 with sodium arylsulfinate afforded 2,5-diarylsulfonyl-1,3,4-thiadiazole (11). Oxidation of compound 10 with hydrogen peroxide in acetic acid gave 2-arylsulfonyl-5-benzylsulfonyl-1,3,4-thiadiazole (12), in high yield.

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