195819-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 195819-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,8,1 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 195819-73:
(8*1)+(7*9)+(6*5)+(5*8)+(4*1)+(3*9)+(2*7)+(1*3)=189
189 % 10 = 9
So 195819-73-9 is a valid CAS Registry Number.