Changzhou Longterm Biotechnology Co., Ltd.

Changzhou Longterm Biotechnology Co., Ltd. is a research-driven and customer-focused company with head office ,sales office and research lab located in Changzhou, Jiangsu, China, and producing plant located in Xi'an, Shaanxi, China. 

As a professional manufacturing company, we discover, develop and commercialize innovative active pharmaceutical ingredients (APIs), cosmetic ingredients and dietary supplements, both synthetical and natural, which enable people to live to the greatest potential, to see more clearly, move more freely and express themselves more fully. 

For custom-made ,our R&D Dept. are specialize in the below listed reactions
Hydrolysis	Methylation
Formylation	Substitution
Benzolation	Diazotization
Hydrogenation	Oxidation
Nitration	Hydroxylation
Esterification	Deoxidize
Acylation RCOOH > RCOCL	 
Manich Reaction	 
Grignard Reaction RX > RMgX

Our company has got the ISO9001:2000 certificate of the system of quality certification and ISO14001:2004 environment system certification . 

We have the capacity to supply our products from grams to multi-kilogram quantities and are committed to providing values for our customers through our extensive range of differentiated products, dependable quality, competitive pricing and excellent customer service. 

All our staff work together to create new paths to health and more benefits for our customers. 

We have initiated extensive business cooperation with customers in many countries and regions, such as the USA, Europe, Australia and Southeast Asia. We have been enjoying a high reputation for superior quality and excellent services in world market.