1097732-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1097732-99-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,7,7,3 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1097732-99:
(9*1)+(8*0)+(7*9)+(6*7)+(5*7)+(4*3)+(3*2)+(2*9)+(1*9)=194
194 % 10 = 4
So 1097732-99-4 is a valid CAS Registry Number.