64423-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64423-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,4,2 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 64423-81:
(7*6)+(6*4)+(5*4)+(4*2)+(3*3)+(2*8)+(1*1)=120
120 % 10 = 0
So 64423-81-0 is a valid CAS Registry Number.