686338-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 686338-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,6,3,3 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 686338-77:
(8*6)+(7*8)+(6*6)+(5*3)+(4*3)+(3*8)+(2*7)+(1*7)=212
212 % 10 = 2
So 686338-77-2 is a valid CAS Registry Number.