1241920-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1241920-03-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,1,9,2 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1241920-03:
(9*1)+(8*2)+(7*4)+(6*1)+(5*9)+(4*2)+(3*0)+(2*0)+(1*3)=115
115 % 10 = 5
So 1241920-03-5 is a valid CAS Registry Number.