816458-62-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 816458-62-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,6,4,5 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 816458-62:
(8*8)+(7*1)+(6*6)+(5*4)+(4*5)+(3*8)+(2*6)+(1*2)=185
185 % 10 = 5
So 816458-62-5 is a valid CAS Registry Number.