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130188-79-3

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130188-79-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130188-79-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,1,8 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 130188-79:
(8*1)+(7*3)+(6*0)+(5*1)+(4*8)+(3*8)+(2*7)+(1*9)=113
113 % 10 = 3
So 130188-79-3 is a valid CAS Registry Number.

130188-79-3Relevant articles and documents

Oxysulfonylation of Alkenes with Sulfonyl Hydrazides under Transition-Metal-Free Conditions

Liu, Congrong,Ding, Lianghui,Guo, Guang,Liu, Weiwei

, p. 910 - 912 (2016)

A novel method to synthesise β-keto sulfones is demonstrated by Br?nsted acid promoted oxysulfonylation of alkenes with sulfonyl hydrazides under transition-metal-free conditions. The reaction selectively affords structurally diverse β-keto sulfones in good to excellent yields in a 9:1 mixture of acetonitrile/water.

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