1121599-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1121599-75-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,1,5,9 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1121599-75:
(9*1)+(8*1)+(7*2)+(6*1)+(5*5)+(4*9)+(3*9)+(2*7)+(1*5)=144
144 % 10 = 4
So 1121599-75-4 is a valid CAS Registry Number.