Changzhou Weijia Chemical Co.,Ltd( WJCHEM) is dedicated to developing,manufacturing and marketing of pharmaceutical intermediates, amino acid derivatives, and fine chemical & Speciality chemicals with five production bases. Those facilities are located in Jiangu, Zhejiang & Shangdong Province,and most of them are GMP approved.

WJCHEM is specialized in contract R&D and customer manufacturing. With the strong force of our highly qualified team of professor and technicals, WJCHEM is capable of the deveopment of new molecular intermediates and chemicals, on confidential agreements.

Quality,Creativeness and Service is our motto. We are confident of being your strategic
Outsourcing and development partner.

WJCHEM can offer the following serivce.
*Custome synthesis and contract manufacturing under confidential agreement
*Product R&D and Process development
*Exchange the transparent sourcing information
*Audit China manufacturing sites requested by customer
*cGMP and non cGMP compliant facilities

*Customer synthesis

Following this aim, we founded a R&D center with full quality control laboratories in the chemical university in Jiangsu, supported by a strong R&D team of skillful chemist and chemical engineer in chemical synthesis biochemical respect.

Combined with the cooperation of our 2 production sites in Jiangsu, we have two separate pilot plants,and offer the reaction as following.

Hydrogenation(Pd.Ni.Rh)
Halogenation Reaction(Cl2,Br2)
Dehydrolysis Reaction(HF)
Cyclization Reaction(NaN3)
Acylation Reaction
Condensation Reaction
Chlorosulfonation Reaction
Diazonation Reaction
Grignard Reaction
Reduction Reaction(KBH4,NaBH4)
Esterification Reaction
Hydrolysis Reaction
Addition Reaction(HF,HBr)
Resolution Reaction
Chloromethyl Reaction

Process condition and equipments
Reaction Temperature Rang:-30°C~ 200°C
Hydrogenation Pressure:5.0Mpa
Vacuum:150Pa or 1.3mmHg
Reactor:5L ~ 5000L, Total Devices :18
Purified water`:300Kg / h,(De-ionized water):5000 Kg / h
Purified Gas Devices:560m3
Waste-water Cleaning Treament:Eqipments: 2
Deal With Amont: 200T/Day, Standard Test: COD =100