128371-68-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128371-68-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,7 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128371-68:
(8*1)+(7*2)+(6*8)+(5*3)+(4*7)+(3*1)+(2*6)+(1*8)=136
136 % 10 = 6
So 128371-68-6 is a valid CAS Registry Number.