472957-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 472957-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,2,9,5 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 472957-71:
(8*4)+(7*7)+(6*2)+(5*9)+(4*5)+(3*7)+(2*7)+(1*1)=194
194 % 10 = 4
So 472957-71-4 is a valid CAS Registry Number.