118871-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118871-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,8,7 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 118871-57:
(8*1)+(7*1)+(6*8)+(5*8)+(4*7)+(3*1)+(2*5)+(1*7)=151
151 % 10 = 1
So 118871-57-1 is a valid CAS Registry Number.