The CAS Registry Mumber 95329-12-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,3,2 and 9 respectively; the second part has 2 digits, 1 and 2 respectively. Calculate Digit Verification of CAS Registry Number 95329-12: (7*9)+(6*5)+(5*3)+(4*2)+(3*9)+(2*1)+(1*2)=147 147 % 10 = 7 So 95329-12-7 is a valid CAS Registry Number.