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91640-28-7

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91640-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91640-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,4 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91640-28:
(7*9)+(6*1)+(5*6)+(4*4)+(3*0)+(2*2)+(1*8)=127
127 % 10 = 7
So 91640-28-7 is a valid CAS Registry Number.

91640-28-7Downstream Products

91640-28-7Relevant articles and documents

Visible-Light-Induced Photocatalytic Synthesis of β-Keto Dithiocarbamates via Difunctionalization of Styrenes

Vishwakarma, Ramesh Kumar,Kumar, Saurabh,Singh, Krishna Nand

supporting information, p. 4147 - 4151 (2021/05/26)

A facile photocatalyzed strategy for difunctionalization of styrenes in the presence of CS2 and amines providing β-keto dithiocarbamates has been developed. In the case of 4-nitrostyrene and 2-vinylpyridine, however, only 2-arylethylthiocarbamates are interestingly formed without the aid of photoredox catalysis/TBHP.

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