686704-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 686704-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,6,7,0 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 686704-39:
(8*6)+(7*8)+(6*6)+(5*7)+(4*0)+(3*4)+(2*3)+(1*9)=202
202 % 10 = 2
So 686704-39-2 is a valid CAS Registry Number.