1099598-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1099598-18-1 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 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1099598-18:
(9*1)+(8*0)+(7*9)+(6*9)+(5*5)+(4*9)+(3*8)+(2*1)+(1*8)=221
221 % 10 = 1
So 1099598-18-1 is a valid CAS Registry Number.