1443980-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1443980-05-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,9,8 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1443980-05:
(9*1)+(8*4)+(7*4)+(6*3)+(5*9)+(4*8)+(3*0)+(2*0)+(1*5)=169
169 % 10 = 9
So 1443980-05-9 is a valid CAS Registry Number.