641626-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 641626-73-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,1,6,2 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 641626-73:
(8*6)+(7*4)+(6*1)+(5*6)+(4*2)+(3*6)+(2*7)+(1*3)=155
155 % 10 = 5
So 641626-73-5 is a valid CAS Registry Number.