1422457-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1422457-71-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,2,4,5 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1422457-71:
(9*1)+(8*4)+(7*2)+(6*2)+(5*4)+(4*5)+(3*7)+(2*7)+(1*1)=143
143 % 10 = 3
So 1422457-71-3 is a valid CAS Registry Number.