The CAS Registry Mumber 152487-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,4,8 and 7 respectively; the second part has 2 digits, 6 and 8 respectively. Calculate Digit Verification of CAS Registry Number 152487-68: (8*1)+(7*5)+(6*2)+(5*4)+(4*8)+(3*7)+(2*6)+(1*8)=148 148 % 10 = 8 So 152487-68-8 is a valid CAS Registry Number.
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