640264-66-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 640264-66-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,0,2,6 and 4 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 640264-66:
(8*6)+(7*4)+(6*0)+(5*2)+(4*6)+(3*4)+(2*6)+(1*6)=140
140 % 10 = 0
So 640264-66-0 is a valid CAS Registry Number.