1010903-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1010903-43-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,0,9,0 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1010903-43:
(9*1)+(8*0)+(7*1)+(6*0)+(5*9)+(4*0)+(3*3)+(2*4)+(1*3)=81
81 % 10 = 1
So 1010903-43-1 is a valid CAS Registry Number.