64528-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64528-20-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,5,2 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 64528-20:
(7*6)+(6*4)+(5*5)+(4*2)+(3*8)+(2*2)+(1*0)=127
127 % 10 = 7
So 64528-20-7 is a valid CAS Registry Number.