839686-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 839686-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,9,6,8 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 839686-81:
(8*8)+(7*3)+(6*9)+(5*6)+(4*8)+(3*6)+(2*8)+(1*1)=236
236 % 10 = 6
So 839686-81-6 is a valid CAS Registry Number.