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109394-52-7

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109394-52-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109394-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,9 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109394-52:
(8*1)+(7*0)+(6*9)+(5*3)+(4*9)+(3*4)+(2*5)+(1*2)=137
137 % 10 = 7
So 109394-52-7 is a valid CAS Registry Number.

109394-52-7Relevant articles and documents

Building Congested Ketone: Substituted Hantzsch Ester and Nitrile as Alkylation Reagents in Photoredox Catalysis

Chen, Wenxin,Liu, Zheng,Tian, Jiaqi,Li, Jin,Ma, Jing,Cheng, Xu,Li, Guigen

, p. 12312 - 12315 (2016/10/07)

For the first time, 4-alkyl Hantzsch esters were used to construct molecules with all-carbon quaternary centers by visible light-induced photoredox catalysis via transfer alkylation. Up to a 1500 h-1 turnover frequency was achieved in this reaction. Reactions of 4-alkyl Hantzsch nitriles as tertiary radical donors joined two contiguous all-carbon quaternary centers intermolecularly, and this chemistry was used to synthesize a common precursor of a class of hydroxysteroid dehydrogenase inhibitors.

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