851191-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 851191-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,1,9 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 851191-55:
(8*8)+(7*5)+(6*1)+(5*1)+(4*9)+(3*1)+(2*5)+(1*5)=164
164 % 10 = 4
So 851191-55-4 is a valid CAS Registry Number.