4646-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4646-89-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,4 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4646-89:
(6*4)+(5*6)+(4*4)+(3*6)+(2*8)+(1*9)=113
113 % 10 = 3
So 4646-89-3 is a valid CAS Registry Number.