656227-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 656227-43-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,2 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 656227-43:
(8*6)+(7*5)+(6*6)+(5*2)+(4*2)+(3*7)+(2*4)+(1*3)=169
169 % 10 = 9
So 656227-43-9 is a valid CAS Registry Number.