8001-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 8001-16-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 8001-16:
(6*8)+(5*0)+(4*0)+(3*1)+(2*1)+(1*6)=59
59 % 10 = 9
So 8001-16-9 is a valid CAS Registry Number.