The CAS Registry Mumber 96410-99-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,6,4,1 and 0 respectively; the second part has 2 digits, 9 and 9 respectively. Calculate Digit Verification of CAS Registry Number 96410-99: (7*9)+(6*6)+(5*4)+(4*1)+(3*0)+(2*9)+(1*9)=150 150 % 10 = 0 So 96410-99-0 is a valid CAS Registry Number.