Profile: Shanghai Hanhong Chemical Co., Ltd. specializes in manufacturing unnatural amino acids, nucleosides, nucleotides, chiral chemicals and pharmaceuticals. Our products include DL-alanine, phthaloyl-L-alanine, D-alanine benzyl ester tosylate, L-arginine hydrochloride, and boc-L-alanine benzyl ester. We offer peptides, & resins and reagents for peptide synthesis. We produce duloxetine hydrochloride, memantine hydrochloride and citalopram hydrobromide.