199858-25-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199858-25-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,8,5 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 199858-25:
(8*1)+(7*9)+(6*9)+(5*8)+(4*5)+(3*8)+(2*2)+(1*5)=218
218 % 10 = 8
So 199858-25-8 is a valid CAS Registry Number.