280105-04-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 280105-04-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,0,1,0 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 280105-04:
(8*2)+(7*8)+(6*0)+(5*1)+(4*0)+(3*5)+(2*0)+(1*4)=96
96 % 10 = 6
So 280105-04-6 is a valid CAS Registry Number.