68428-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68428-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,4,2 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68428-65:
(7*6)+(6*8)+(5*4)+(4*2)+(3*8)+(2*6)+(1*5)=159
159 % 10 = 9
So 68428-65-9 is a valid CAS Registry Number.