62257-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 62257-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,2,5 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 62257-91:
(7*6)+(6*2)+(5*2)+(4*5)+(3*7)+(2*9)+(1*1)=124
124 % 10 = 4
So 62257-91-4 is a valid CAS Registry Number.