105431-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105431-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,4,3 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 105431-93:
(8*1)+(7*0)+(6*5)+(5*4)+(4*3)+(3*1)+(2*9)+(1*3)=94
94 % 10 = 4
So 105431-93-4 is a valid CAS Registry Number.