The CAS Registry Mumber 79292-14-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,2,9 and 2 respectively; the second part has 2 digits, 1 and 4 respectively. Calculate Digit Verification of CAS Registry Number 79292-14: (7*7)+(6*9)+(5*2)+(4*9)+(3*2)+(2*1)+(1*4)=161 161 % 10 = 1 So 79292-14-1 is a valid CAS Registry Number.