The CAS Registry Mumber 93108-68-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,1,0 and 8 respectively; the second part has 2 digits, 6 and 8 respectively. Calculate Digit Verification of CAS Registry Number 93108-68: (7*9)+(6*3)+(5*1)+(4*0)+(3*8)+(2*6)+(1*8)=130 130 % 10 = 0 So 93108-68-0 is a valid CAS Registry Number.
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