1099597-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1099597-61-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,9,5,9 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1099597-61:
(9*1)+(8*0)+(7*9)+(6*9)+(5*5)+(4*9)+(3*7)+(2*6)+(1*1)=221
221 % 10 = 1
So 1099597-61-1 is a valid CAS Registry Number.