994-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 994-80-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 994-80:
(5*9)+(4*9)+(3*4)+(2*8)+(1*0)=109
109 % 10 = 9
So 994-80-9 is a valid CAS Registry Number.