Contract Manufacturing

We could undertake custom development,custom manufacturing for various organic chemicals,special chemicals intermediates and raw materials, ranging from g, kg to 100-ton-level clinical and mass production products.Volsen not only owns more than 10 years commercial production experiences of common products, but also owns a professional custom synthesis team, it makes up for developing issue of production team,production experiences issue of research team. realized the most efficient combination of production and R&D. We can conduct process optimization to the technology provided by our customers, as well as carry out new process development for product provided by them.

The target of Custom synthesis

1. Provide customers with integrated services throughout the life cycle of the product in areas such as agricultural chemicals, pharmaceuticals chemicals.

2. Production enlargement, Continuous Process development

3. Continuous quality improvement, cost reduction and efficiency optimization.


The Advantage of Custom synthesis

1.High efficient, rich experience and full of innovative professional R & D team.

2.Advanced research and development equipment, flexible pilot plant,improved production facilities

3.Professional project management personnel, a sound project management system.

4.The tailored customized production help customers to reduce the cost of money and time.


Mode of Custom synthesis
1.Conduct process optimization to the technology provided by our customers

2. Carry out new process development for product provided by them.


The process of customized business:

1) Complete the project analysis and respond to customers in three days after received a single customer consultation;

2) Two parties confirm the quality specification as the final quality standards.

3) R&D department starts to research, synthesis.Give weekly report to customer about project progress.

4) Customer confirms the sample, later,we provided details of production schedule.

5) Two parties signed the contract.

6) After finished, QA department make a analysis.

7) Customer acceptance of products by qualified finished.


Confidential Commitment

Keep Strictly confidential of client projects is one of our business criteria, we will put the confidentiality on the height of strategic development. We conduct strictly confidentiality measures and workflows.If necessary, may enter into a confidentiality contract. We are willing to work closely with customers at home and abroad to develop the production of new chemical products.No matter what the issue.We are ready to serve you faithfully.





Customization Cobicistat Intermediates CAS 1004316-18-0
Customization Cobicistat Intermediates CAS 1004316-18-0
(2R,5R)-1,6-Diphenylhexane-2,5-DiaMine Dihydrochloride CAS 1247119-31-8
(2R,5R)-1,6-Diphenylhexane-2,5-DiaMine Dihydrochloride CAS 1247119-31-8
Cobicistat Inter (S)-Ethyl 2-[3-(2-Isopropyl-thiazol-4-ylmethyl)-3-methylureido]-4-morpholin-4-yl-butanoate CAS 1247119-35-2
Cobicistat Inter (S)-Ethyl 2-[3-(2-Isopropyl-thiazol-4-ylmethyl)-3-methylureido]-4-morpholin-4-yl-butanoate CAS 1247119-35-2
Offer 2,6-Dibromoaniline HPLC≥99% CAS 608-30-0
Offer 2,6-Dibromoaniline HPLC≥99% CAS 608-30-0
2,6-Dibromoaniline MFCD00007638 CAS 608-30-0
2,6-Dibromoaniline MFCD00007638 CAS 608-30-0
Brownish Yellow Solid 1,1'-Dibromoferrocene (CAS 1293-65-8) Purity 97%
Brownish Yellow Solid 1,1'-Dibromoferrocene (CAS 1293-65-8) Purity 97%
Ubiquinone Derivative Nootropic Drug Idebenone CAS 58186-27-9
Ubiquinone Derivative Nootropic Drug Idebenone CAS 58186-27-9
High Purity Pidotimod(PGT/1A) CAS 121808-62-6
High Purity Pidotimod(PGT/1A) CAS 121808-62-6
High Purity Donepezil Intermediates 5,6-Dimethoxy-1-Indanone for Anti-Alzheimer CAS 2107-69-9
High Purity Donepezil Intermediates 5,6-Dimethoxy-1-Indanone for Anti-Alzheimer CAS 2107-69-9
Novel Bioactive Proteasome Inhibitor Ixazomib 1201902-80-8
Novel Bioactive Proteasome Inhibitor Ixazomib 1201902-80-8
Ixazomib Named MLN9708 MLN-9708 MLN 9708 1201902-80-8
Ixazomib Named MLN9708 MLN-9708 MLN 9708 1201902-80-8
Ixazomib (MLN9708 MLN 9708) Intermediate N-[(2,5-dichlorophenyl)carbonyl]glycine 667403-46-5
Ixazomib (MLN9708 MLN 9708) Intermediate N-[(2,5-dichlorophenyl)carbonyl]glycine 667403-46-5
Bortezomib Intermediate (R)-BoroLeu-(+)-Pinanediol-CF3COOH 179324-87-9
Bortezomib Intermediate (R)-BoroLeu-(+)-Pinanediol-CF3COOH 179324-87-9
GABA Receptor Baclofen, (±)-Baclofen, (RS)-Baclofen CAS 1134-47-0
GABA Receptor Baclofen, (±)-Baclofen, (RS)-Baclofen CAS 1134-47-0
4-Amino-5-Chloro-2,3-Dihydro-7-Benzofurancarboxylic Acid CAS 123654-26-2
4-Amino-5-Chloro-2,3-Dihydro-7-Benzofurancarboxylic Acid CAS 123654-26-2
Prucalopride Succinate InterMediate A 143878-29-9
Prucalopride Succinate InterMediate A 143878-29-9
Colorless Liquid 3-Methoxypropyl-4-Piperidinamine CAS 179474-79-4
Colorless Liquid 3-Methoxypropyl-4-Piperidinamine CAS 179474-79-4
High Purity Roxadustat(FG4592/ FG-4592) Intermediate CAS 1455091-10-7
High Purity Roxadustat(FG4592/ FG-4592) Intermediate CAS 1455091-10-7
5-Bromoisobenzofuran-1(3H)-one CAS 64169-34-2
5-Bromoisobenzofuran-1(3H)-one CAS 64169-34-2
Synthesis Roxadustat Methyl 4-Hydroxy-1-Methyl-7-Phenoxyisoquinoline-3-Carboxylate CAS 1421312-34-6
Synthesis Roxadustat Methyl 4-Hydroxy-1-Methyl-7-Phenoxyisoquinoline-3-Carboxylate CAS 1421312-34-6
Ixazomib Citrate (MLN9708) CAS 1239908-20-3
Ixazomib Citrate (MLN9708) CAS 1239908-20-3
High Purity Ixazomib(MLN-2238; MLN 2238; MLN2238) CAS 1072833-77-2
High Purity Ixazomib(MLN-2238; MLN 2238; MLN2238) CAS 1072833-77-2
Good Quality 4-Methoxy-N-Methylaniline, 98% CAS 5961-59-1
Good Quality 4-Methoxy-N-Methylaniline, 98% CAS 5961-59-1
2-Cyano-N-[4-(Trifluoromethyl)Phenyl]Acetamide CAS 24522-30-3
2-Cyano-N-[4-(Trifluoromethyl)Phenyl]Acetamide CAS 24522-30-3

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