1268521-57-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1268521-57-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,5,2 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1268521-57:
(9*1)+(8*2)+(7*6)+(6*8)+(5*5)+(4*2)+(3*1)+(2*5)+(1*7)=168
168 % 10 = 8
So 1268521-57-8 is a valid CAS Registry Number.