64489-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64489-83-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,4,8 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64489-83:
(7*6)+(6*4)+(5*4)+(4*8)+(3*9)+(2*8)+(1*3)=164
164 % 10 = 4
So 64489-83-4 is a valid CAS Registry Number.