3909-79-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3909-79-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,0 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3909-79:
(6*3)+(5*9)+(4*0)+(3*9)+(2*7)+(1*9)=113
113 % 10 = 3
So 3909-79-3 is a valid CAS Registry Number.