The CAS Registry Mumber 125228-46-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,2,2 and 8 respectively; the second part has 2 digits, 4 and 6 respectively. Calculate Digit Verification of CAS Registry Number 125228-46: (8*1)+(7*2)+(6*5)+(5*2)+(4*2)+(3*8)+(2*4)+(1*6)=108 108 % 10 = 8 So 125228-46-8 is a valid CAS Registry Number.
Asymmetric synthesis. 21. The first enantioselective synthesis of natural (+)-tetraponerine-8: A new extention of the CN(R,S) method to an uncommon skeleton
Yue,Royer,Husson
, p. 1140 - 1141 (1990)
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