1181803-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1181803-05-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,8,0 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1181803-05:
(9*1)+(8*1)+(7*8)+(6*1)+(5*8)+(4*0)+(3*3)+(2*0)+(1*5)=133
133 % 10 = 3
So 1181803-05-3 is a valid CAS Registry Number.