57847-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57847-71-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,4 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57847-71:
(7*5)+(6*7)+(5*8)+(4*4)+(3*7)+(2*7)+(1*1)=169
169 % 10 = 9
So 57847-71-9 is a valid CAS Registry Number.