64890-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64890-05-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,9 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 64890-05:
(7*6)+(6*4)+(5*8)+(4*9)+(3*0)+(2*0)+(1*5)=147
147 % 10 = 7
So 64890-05-7 is a valid CAS Registry Number.