105402-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105402-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,4,0 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 105402-05:
(8*1)+(7*0)+(6*5)+(5*4)+(4*0)+(3*2)+(2*0)+(1*5)=69
69 % 10 = 9
So 105402-05-9 is a valid CAS Registry Number.