Changzhou HuaSheng Chemical was established in 2002, a techniqual middle-small company, and dedicated in custom manfacturing and its pilot production for high value-added pharmaceutical interemediates, most products was sold overseas, quantity from grams to tons. After continuring efforts for several years, our company takes great development, now it has a lab, with qualified team mainly consisted of 3 chemists Doctor, who concentrated in custom manufacturing. Currently we rent a pilot workshop, with reactors from 50L to 1500L, so we can produce different batch of quantity from few grams to commercial production.Our quality test system is tather completed, including GC and HPLC system, each one, to make sure that we can offer good quality to customers.We are good at Isoquinoline series, Pyridine and Piperidine series derivatives, eg. both already production in lab and commercial production in pilot, 2-Piperidone CAS675-20-7 and 2-Benzothiazolecarbonitrile, 6-methoxy- CAS943-03-3, we take advantage of technology and cost, with steady quality. Welcome to contact for further cooperation from all over the world!