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.





1051375-10-0, Cabotegravir (GSK744, GSK1265744)
1051375-10-0, Cabotegravir (GSK744, GSK1265744)
1051375-13-3, Cabotegravir Sodium, GSK1265744 (SodiuM Salt)
1051375-13-3, Cabotegravir Sodium, GSK1265744 (SodiuM Salt)
CAS 1051375-13-3, Cabotegravir Sodium
CAS 1051375-13-3, Cabotegravir Sodium
503070-58-4, Vilanterol Trifenatate (API) β2-AR agonist
503070-58-4, Vilanterol Trifenatate (API) β2-AR agonist
CAS 503070-58-4, High Purity Vilanterol Trifenatate (GW642444)
CAS 503070-58-4, High Purity Vilanterol Trifenatate (GW642444)
CAS 102293-80-1, 2-BROMO-1-(2,2-DIMETHYL-4H-1,3-BENZODIOXIN-6-YL)ETHANONE
CAS 102293-80-1, 2-BROMO-1-(2,2-DIMETHYL-4H-1,3-BENZODIOXIN-6-YL)ETHANONE
15462-91-6, Tofisopam Intermediate
15462-91-6, Tofisopam Intermediate
Idelalisib CAL-101(N-1) 870281-84-8
Idelalisib CAL-101(N-1) 870281-84-8
IDELALISIB N-2 870281-85-9
IDELALISIB N-2 870281-85-9
High Quality and Favorable Price Idelalisib intermediate 870281-86-0
High Quality and Favorable Price Idelalisib intermediate 870281-86-0
Cis-2,6-Dimethylmorpholine, Amorolfine Intermediate CAS 6485-55-8
Cis-2,6-Dimethylmorpholine, Amorolfine Intermediate CAS 6485-55-8
Amorolfine Intermediate 6485-55-8
Amorolfine Intermediate 6485-55-8
3-Methylaminopiperidine dihydrochloride Balofloxacin Intermediate, 127294-77-3
3-Methylaminopiperidine dihydrochloride Balofloxacin Intermediate, 127294-77-3
Balofloxacin Intermediate CAS 127294-77-3
Balofloxacin Intermediate CAS 127294-77-3
4-Nitrobenzaldehyde, 555-16-8
4-Nitrobenzaldehyde, 555-16-8
4-Nitrobenzaldehyde CAS 555-16-8
4-Nitrobenzaldehyde CAS 555-16-8
High Purty Mirabegron Intermediates 521284-22-0
High Purty Mirabegron Intermediates 521284-22-0
PeraMpanel Intermediates 381233-78-9 5-(2-PYRIDYL)-1,2-DIHYDROPYRIDIN-2-ONE
PeraMpanel Intermediates 381233-78-9 5-(2-PYRIDYL)-1,2-DIHYDROPYRIDIN-2-ONE
1-Phenyl-5-(pyridin-2-yl)-1,2-dihydropyridin-2-one 381725-50-4
1-Phenyl-5-(pyridin-2-yl)-1,2-dihydropyridin-2-one 381725-50-4
5'-broMo-1'-phenyl-[2,3'-bipyridin]-6'(1'H)-one 381248-06-2
5'-broMo-1'-phenyl-[2,3'-bipyridin]-6'(1'H)-one 381248-06-2
Pharmaceutical Grade Pranoprofen CAS 52549-17-4
Pharmaceutical Grade Pranoprofen CAS 52549-17-4
Receptor Protein-kinase Inhibitor Axitinib CAS 319460-85-0
Receptor Protein-kinase Inhibitor Axitinib CAS 319460-85-0
Hot Sale Anti-Cancer Axitinib CAS 319460-85-0
Hot Sale Anti-Cancer Axitinib CAS 319460-85-0
Pharmaceutical Grade Mirabegron Intermediate 521284-22-0
Pharmaceutical Grade Mirabegron Intermediate 521284-22-0

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