5818-77-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5818-77-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,1 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5818-77:
(6*5)+(5*8)+(4*1)+(3*8)+(2*7)+(1*7)=119
119 % 10 = 9
So 5818-77-9 is a valid CAS Registry Number.