687585-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 687585-65-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,7,5,8 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 687585-65:
(8*6)+(7*8)+(6*7)+(5*5)+(4*8)+(3*5)+(2*6)+(1*5)=235
235 % 10 = 5
So 687585-65-5 is a valid CAS Registry Number.