The CAS Registry Mumber 124502-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,5,0 and 2 respectively; the second part has 2 digits, 3 and 0 respectively. Calculate Digit Verification of CAS Registry Number 124502-30: (8*1)+(7*2)+(6*4)+(5*5)+(4*0)+(3*2)+(2*3)+(1*0)=83 83 % 10 = 3 So 124502-30-3 is a valid CAS Registry Number.
Synthesis of some heterocycles of pharmaceutical interest
Abbas Metwally,El-Hussiny,El-Ablak,Khalil
, p. 261 - 265 (2007/10/02)
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