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Hola, espero te encuentres bien, disculpa, tendras isomeros? como D-Meth, si no, meth normal, cual seria el precio por +50 gramos de meth? me interesan 50 o mas, soy de mexico. Gracias y que tengas buen dia!

someone know about try catalyst with ammonium carbonate? in presence of acetic acid, how much acetic acid is used if the book say "an excess", thanks

@G.Patton excuse me, what is the "bisulfite addition product"? what's the porpuse of the bisulfite? thanks.

hi, excuse me, when you say "We precipitate d-amphetamine with an additional amount of d-tartaric acid.", how much d-tartaric acid is used? thanks.