The CAS Registry Mumber 119449-00-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,4,4 and 9 respectively; the second part has 2 digits, 0 and 0 respectively. Calculate Digit Verification of CAS Registry Number 119449-00: (8*1)+(7*1)+(6*9)+(5*4)+(4*4)+(3*9)+(2*0)+(1*0)=132 132 % 10 = 2 So 119449-00-2 is a valid CAS Registry Number.