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83957-15-7

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83957-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83957-15-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,5 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83957-15:
(7*8)+(6*3)+(5*9)+(4*5)+(3*7)+(2*1)+(1*5)=167
167 % 10 = 7
So 83957-15-7 is a valid CAS Registry Number.

83957-15-7Downstream Products

83957-15-7Relevant articles and documents

A simple method for the synthesis of sulfonic esters

Bhatthula, Bharath Kumar Goud,Kanchani, Janardhan Reddy,Arava, Veera Reddy,Marata Chenna Subbarao, Subha

supporting information, p. 1 - 16 (2020/07/27)

An efficient and simple approach for the direct synthesis of aryl and heteroaryl sulfonic esters was developed using DMS and DES as alkoxysulfonylation reagents. The reaction is operationally simple and scalable. This protocol does not require solvent, expensive catalysts, base, ligand additives or other reagents. A wide range of sulfonic esters were synthesized in moderate to good chemical yields. This method has the advantage of low cost, facile and tolerated a wide range of substrates.

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