64957-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64957-72-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,9,5 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64957-72:
(7*6)+(6*4)+(5*9)+(4*5)+(3*7)+(2*7)+(1*2)=168
168 % 10 = 8
So 64957-72-8 is a valid CAS Registry Number.