Benzene & DerivativeChina L-Serine Methyl Ester Hydrochloride 5680-80-8/N-Acetyl-Dl-Tryptophan 87-32-1/D-Pyroglutamic Acid 4042-36-8/D-Arginine 157-06-2/36687-82-8 L-Carnitine Tartrate, Find details about China L-Carnitine Tartrate, 36687-82-8 from L-Serine Methyl Ester Hydrochloride 5680-80-8/N-Acetyl-Dl-Tryptophan 87-32-1/D-Pyroglutamic Acid 4042-36-8/D-Arginine 157-06-2/36687-82-8 L-Carnitine Tartrate