No man, nobody can tell you anything from that picture. When it comes to ephedrine there is 1R,2R and 1R, 2S That's it. If it's 1S, it's pseudoephedrine
Thay is the chirality. Ephedrine and analogs have 2 carbons thay can turn and what they is telling you is if you looked down the molecule back ro front, the first carbontwist to the right (1R) orto the left (1S) and the second chiral carbon is the sa,e but it is 2R,S.
INWhen you reduce pseudo what you lose is the first chiral carbon. Meth only has one chiral carbon thisnis why ephedrine and pseudoephedrine can be used the name is based on the first carbon and you removed it. Itsnthe second that's important
Nope, you dont.. not here anyways. It's free to make an add and sell here, but the trick is you make an ad, you can't just be the kool-aid girl smashing down the walls of the forum to try to force your stuff in people. At the bottom of every page, are THE RULES. You should check that out