1016523-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1016523-43-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,6,5,2 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1016523-43:
(9*1)+(8*0)+(7*1)+(6*6)+(5*5)+(4*2)+(3*3)+(2*4)+(1*3)=105
105 % 10 = 5
So 1016523-43-5 is a valid CAS Registry Number.