I hate to bust your bubble, folks, but you are talking about aphrodesiacs.  Science and psychology have confirmed experimentally that there is no such chemical.

However, if you want a girl to fall madly in love with you, certain carbon structures will usually do the trick.

They are easily commercially available at any well run shopping center.

I refer to a beautiful bouquet of flowers, a box of chocolates, gradually increasing the romance of your nights on the town to about eight per week, then finally a contrite look, a little chip of diamond on a ring her size and a gentle kiss.

That's the best love stimulant I ever used.  That was 26 years ago, and I still bring her home flowers.

Works like a charm!