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107938-32-9

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107938-32-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107938-32-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,9,3 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 107938-32:
(8*1)+(7*0)+(6*7)+(5*9)+(4*3)+(3*8)+(2*3)+(1*2)=139
139 % 10 = 9
So 107938-32-9 is a valid CAS Registry Number.

107938-32-9Relevant articles and documents

Synthesis Of Highly Functionalized Homochiral Azetidines And Azetidine-2-Carboxylic Esters

Dureault, Annie,Portal, Martine,Carreaux, Francois,Depezay, Jean Claude

, p. 4201 - 4210 (2007/10/02)

Homochiral (2S,3S)-3-benzyloxy-2-formyl-azetidines 2, (2S,3S)-3-benzyloxy-2-carbomethoxy-azetidines 3 and the highly strained (2S)-N-p-methoxyphenyl-2-silyloxymethyl-3-azetidinone 4 were successfully synthesized starting from diethyl-L-tartrate.The suitably functionalized azetidine ring is formed in a single synthetic operation with minimum protecting group chemistry.Key Words: Polyhydroxylated azetidines, 2-carbomethoxy-3-hydroxy-azetidines, 2-hydroxymethyl-3-azetidinone

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