98571-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98571-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,5,7 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98571-18:
(7*9)+(6*8)+(5*5)+(4*7)+(3*1)+(2*1)+(1*8)=177
177 % 10 = 7
So 98571-18-7 is a valid CAS Registry Number.