Luotian Hengxingyuan Chemical Co.,Ltd. The largest ??ELATONIN??production base in China, is a comprehensive enterprise integrating R?? production, and sales of fine chemicals intermediates ??aw materials for pharmaceuticals and health products ??ood ??food additives etc.Main products:Melatonin,Benserazide
hydrochloride,4-Hydroxycoumarin,Evodiamine,Metronidazole Benzoate,Warfarin Sodium,Tryptamine,Tryptamine hydrochloride,5-chloro tryptamine,5-chloro tryptamine hydrochloride,5-fluoro tryptamine,5-fluoro tryptamine hydrochloride,DL-Serine hydrazine hydrochloride,DL-Serinemester hydrochloride,5-Methoxytryptamine,5-
Methoxytryptamine hydrochloride,5-methyl tryptamine,5-methyl tryptamine hydrochloride,Nicotinic acid,sulfadoxine.
    The company boasts top-notch professionals and advanced testing equipments. We conduct the prouduction strictly in accordance with the GMP standard. The company has passed the ISO9001:2000Q.C. certification, and our products, with world-top quality ,have been sold far to Europe ??he US and the Southeast Asian
regions.
    Keeping to the principle of ??uality ??credibility first ??ervice??mutual benefit ??and upholding the tenet of ??onesty??fairness??cooperation and development??, we sincerely provide excellent services to customers from both home and abroad.