64358-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64358-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,3,5 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 64358-20:
(7*6)+(6*4)+(5*3)+(4*5)+(3*8)+(2*2)+(1*0)=129
129 % 10 = 9
So 64358-20-9 is a valid CAS Registry Number.