1221280-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221280-89-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,2,8 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1221280-89:
(9*1)+(8*2)+(7*2)+(6*1)+(5*2)+(4*8)+(3*0)+(2*8)+(1*9)=112
112 % 10 = 2
So 1221280-89-2 is a valid CAS Registry Number.