The CAS Registry Mumber 95237-36-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,2,3 and 7 respectively; the second part has 2 digits, 3 and 6 respectively. Calculate Digit Verification of CAS Registry Number 95237-36: (7*9)+(6*5)+(5*2)+(4*3)+(3*7)+(2*3)+(1*6)=148 148 % 10 = 8 So 95237-36-8 is a valid CAS Registry Number.