👉 The word '727.810628934;1,3,8,8 tetramethyl 5 phenyl 5,8,9,10 tetrahydropyrimido[4,5 b]quinoline 2,4,6(1H,3H,7H) trione' is a mouthful of a chemical formula. It's a complex compound with eight atoms and it's made up of seven identical parts in the right order. Imagine all the different ways that you could arrange the six carbon atoms and five hydrogen atoms to make this compound!
For instance, imagine if you started by placing two hydrogen atoms on top of each carbon atom: '1-2-8-8'. You would end up with a tetramethyl 5 phenyl 5,8,9,10 tetrahydropyrimido[4,5 b]quinoline 2,4,6(1H,3H,7H) trione. It's like arranging all six atoms in an alphabetical order and then putting them together! Now, let's say you took the last part (the '8') and added two hydrogen atoms on top of it: '8-2-8'. You would end up with a tetramethyl 5 phenyl 5,8,9,10 tetrahydropyrimido[4,5 b]quinoline 7
