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105318-32-9

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105318-32-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 105318-32-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,3,1 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 105318-32:
(8*1)+(7*0)+(6*5)+(5*3)+(4*1)+(3*8)+(2*3)+(1*2)=89
89 % 10 = 9
So 105318-32-9 is a valid CAS Registry Number.

105318-32-9Relevant articles and documents

Beta-lactams and their production

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, (2008/06/13)

A beta-lactam compound of the formula: STR1 wherein R1 and R2 are, the same or different, each a hydrogen atom or a lower alkyl group, R30 is a hydroen atom or a lower alkyl group having a beta-configuration, R4 is a carboxyl-protecting group, X is a hydrogen atom or a protected hydroxyl group and COZ is a protected thiolcarboxyl group, which is useful as a valuable intermediate in the stereospecific production of 1-alkylcarbapenem compounds.

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