The CAS Registry Mumber 137718-69-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,1 and 8 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 137718-69: (8*1)+(7*3)+(6*7)+(5*7)+(4*1)+(3*8)+(2*6)+(1*9)=155 155 % 10 = 5 So 137718-69-5 is a valid CAS Registry Number.
Enantioselective synthesis of (+)-3-isorauniticine via a catalytic tandem 'palladium-ene'/carbonylation reaction
Oppolzer,Bienayme,Genevois-Borella
, p. 9660 - 9661 (2007/10/02)
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