1285521-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1285521-89-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,5,5,2 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1285521-89:
(9*1)+(8*2)+(7*8)+(6*5)+(5*5)+(4*2)+(3*1)+(2*8)+(1*9)=172
172 % 10 = 2
So 1285521-89-2 is a valid CAS Registry Number.