The CAS Registry Mumber 76360-22-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,3,6 and 0 respectively; the second part has 2 digits, 2 and 2 respectively. Calculate Digit Verification of CAS Registry Number 76360-22: (7*7)+(6*6)+(5*3)+(4*6)+(3*0)+(2*2)+(1*2)=130 130 % 10 = 0 So 76360-22-0 is a valid CAS Registry Number.