The CAS Registry Mumber 94627-01-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,6,2 and 7 respectively; the second part has 2 digits, 0 and 1 respectively. Calculate Digit Verification of CAS Registry Number 94627-01: (7*9)+(6*4)+(5*6)+(4*2)+(3*7)+(2*0)+(1*1)=147 147 % 10 = 7 So 94627-01-7 is a valid CAS Registry Number.