686344-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 686344-17-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,6,3,4 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 686344-17:
(8*6)+(7*8)+(6*6)+(5*3)+(4*4)+(3*4)+(2*1)+(1*7)=192
192 % 10 = 2
So 686344-17-2 is a valid CAS Registry Number.