102489-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102489-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,4,8 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 102489-05:
(8*1)+(7*0)+(6*2)+(5*4)+(4*8)+(3*9)+(2*0)+(1*5)=104
104 % 10 = 4
So 102489-05-4 is a valid CAS Registry Number.