816458-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 816458-07-8 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, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 816458-07:
(8*8)+(7*1)+(6*6)+(5*4)+(4*5)+(3*8)+(2*0)+(1*7)=178
178 % 10 = 8
So 816458-07-8 is a valid CAS Registry Number.