858-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858-05-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,5 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 858-05:
(5*8)+(4*5)+(3*8)+(2*0)+(1*5)=89
89 % 10 = 9
So 858-05-9 is a valid CAS Registry Number.