Company Details
  • Taizhou Volsen Chemical Co., Ltd.

  •  [Zhejiang,China]
  • Business Type:Manufacturer
  • Main Mark: Americas , Asia , East Europe , Europe , North Europe , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:GS, CE, ISO9001, ISO14000
  • Description:Chemical Product Customization, Customized Pharmaceutical Products, Pharmaceutical Customization
Taizhou Volsen Chemical Co., Ltd. Chemical Product Customization, Customized Pharmaceutical Products, Pharmaceutical Customization
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Contract Manufacturing

Product categories of Contract Manufacturing, we are specialized manufacturers from China, Chemical Product Customization, Customized Pharmaceutical Products suppliers/factory, wholesale high-quality products of Pharmaceutical Customization R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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Natural Bioflavonoid Quercetin Dihydrate Cas number  6151-25-3
Natural Bioflavonoid Quercetin Dihydrate Cas number 6151-25-3

Model No. : 6151-25-3

Quercetin dihydrate cas number 6151 25 3 which is a natural bioflavonoid Both skin photoaging and ultraviolet UV induction can cause excessive production of reactive oxygen species ROS in the skin resulting in damage or apoptosis of skin...

China Chemical Product Customization of with CE
Flavanonol Dihydroquercetin (Taxifolin)  CAS  480-18-2
Flavanonol Dihydroquercetin (Taxifolin) CAS 480-18-2

Model No. : 480-18-2

Dihydroquercetin CAS number is 480 18 2 which is one of the active ingredients of natural flavonoids belongs to the vitamin P group is a dihydroflavonol compound with many natural active ingredients and it has strong resistance and Oxidation ability...

China Manufacturer of Customized Pharmaceutical Products
Novel Proteasome Inhibitor Bortezomib  CAS Number  179324-69-7
Novel Proteasome Inhibitor Bortezomib CAS Number 179324-69-7

Model No. : 179324-69-7

Bortezomib BTZ cas number is 179324 69 7 a novel proteasome inhibitor has been used in the treatment of multiple myeloma It affects the tumor microenvironment increases the degree of endoplasmic reticulum stress and induces tumor cell apoptosis to...

High Quality Pharmaceutical Customization China Supplier
Anti-HIV Drug Bictegravir Sodium GS-9883; GS 9883; GS9883; GS-9883-01 CAS Number 1807988-02-8
Anti-HIV Drug Bictegravir Sodium GS-9883; GS 9883; GS9883; GS-9883-01 CAS Number 1807988-02-8

Model No. : 1807988-02-8

Bictegravir sodium CAS Number is 1807988 02 8 The FDA approved the Bictegravir sodium combination as a new anti HIV drug on February 12 2018 Some professionals expect Bictegravir sodium combination CAS Number 1807988 02 8 has the sales value more...

High Quality Chemical Product Customization China Factory
Bictegravir (GS-9883;GS9883;GS 9883) CAS Number 1611493-60-7
Bictegravir (GS-9883;GS9883;GS 9883) CAS Number 1611493-60-7

Model No. : 1611493-60-7

Bictegravir CAS number is 1611493 60 7 developed code is GS 9883 is a new class of integrase inhibitors Unlike the previously developed integrase inhibitors Bictegravir only needs to be used once a day without the synergist cobicistat In the third...

China Supplier of Customized Pharmaceutical Products
41051-15-4,Methyl 4-methoxyacetoacetate Used for Making Dolutegravir
41051-15-4,Methyl 4-methoxyacetoacetate Used for Making Dolutegravir

Model No. : 41051-15-4

Methyl 4 methoxyacetoacetate cas number 41051 15 4 which is a colorless transparent liquid with an aromatic odor It is an important pharmaceutical intermediate compound It is mainly used in the synthesis of the new anti AIDS drug Dolutegravir...

China Factory of Pharmaceutical Customization
Pharmaceutical Synthesis Of (1R,3S)-3-Aminocyclopentanol CAS 1110772-05-8
Pharmaceutical Synthesis Of (1R,3S)-3-Aminocyclopentanol CAS 1110772-05-8

Model No. : 1110772-05-8

Bictegravir intermediate named 1R 3S 3 Aminocyclopentanol CAS number is 1110772 05 8 His synthesis process is as follows 1 Under nitrogen protection 600 mL of tetrahydrofuran is added to the reaction flask the stirring device is turned on and 60 1...

Chemical Product Customization Made in China
(1R,3S)-3-Aminocyclopentanol hydrochloride CAS number 1279032-31-3
(1R,3S)-3-Aminocyclopentanol hydrochloride CAS number 1279032-31-3

Model No. : 1279032-31-3

1R 3S 3 Aminocyclopentanol hydrochloride CAS number is 1279032 31 3 which is a key starting material for Bictegravir Some literatures have reported on his synthesis process first using tert butyl 1S 3R 3 acetylcyclopentylcarbamate as raw material...

Professional Manufacturer of Customized Pharmaceutical Products
High Purity Ixazomib(MLN-2238; MLN 2238; MLN2238) CAS 1072833-77-2
High Purity Ixazomib(MLN-2238; MLN 2238; MLN2238) CAS 1072833-77-2

Model No. : 1072833-77-2

Ixazomib cas number is 1072833 77 2 also named MLN 2238 which is a nitrogen capped dipeptide leucine boronic acid that inhibits the chymotrypsin 5 hydrolysis site of the 20S proteasome with an IC50 of 3 4 nM and a Ki value of 0 93 nM At higher...

Leading Manufacturer of Pharmaceutical Customization
1-Methylpyrrolidin-3-Yl Cyclopentylphenylglycolate CAS Number 13118-11-1
1-Methylpyrrolidin-3-Yl Cyclopentylphenylglycolate CAS Number 13118-11-1

Model No. : 13118-11-1

1 methylpyrrolidin 3 yl cyclopentylphenylglycolate CAS number 13118 11 1 is used to make Glycopyrrolate Bromide molecular formula C18H25NO3 molecular weight 303 396 appearance of yellow oily liquid The purity of our product is more than 90 and N...

Professional Supplier of Chemical Product Customization
α-Cyclopentylmandelic Acid  CAS Number 427-49-6
α-Cyclopentylmandelic Acid CAS Number 427-49-6

Model No. : 427-49-6

Alpha Cyclopentylmandelic acid is an intermediate of Glycopyrrolate Bromide CAS number is 427 49 6 Molecular formula C13H16O3 molecular weight 220 26 appearance of almost white crystalline powder odourless The alpha Cyclopentylmandelic acid of...

5-Bromoisobenzofuran-1(3H)-one CAS 64169-34-2
5-Bromoisobenzofuran-1(3H)-one CAS 64169-34-2

Model No. : 64169-34-2

We are professional supplier of 5 Bromophthalide CAS 64169 34 2 that is an important intermediate for FG 4592 FG 4592 is a HIF prolyl hydroxylase inhibitor that is approved for the treatment of anemia 5 Bromophthalide CAS NO 64169 34 2 is white to...

2-Cyano-N-[4-(Trifluoromethyl)Phenyl]Acetamide CAS 24522-30-3
2-Cyano-N-[4-(Trifluoromethyl)Phenyl]Acetamide CAS 24522-30-3

Model No. : 24522-30-3

The specific preparation process Teriflunomide intermediate of 2 cyano N 4 trifluoromethyl phenyl acetamide cas 24522 30 3 was as follows 205 g of sodium azide 400 g of 4 trifluoromethylbenzoic acid 52 4 g of triphenylphosphine and 28 g of N...

Anticholinergic Drug Glycopyrrolate CAS Number 596-51-0
Anticholinergic Drug Glycopyrrolate CAS Number 596-51-0

Model No. : 596-51-0

Glycopyrrolate CAS Number is 596 51 0 the appearance of white crystalline powder odorless bitter taste Soluble in water methanol or ethanol almost insoluble in chloroform or ether Cannot be mixed with alkaline drugs It is a quaternary ammonium...

Carfilzomib Intermediate Cas 247068-85-5
Carfilzomib Intermediate Cas 247068-85-5

Model No. : 247068-85-5

The key intermediate of Carfilzomib CAS number is 247068 85 5 It is very difficult to synthesize and it is an important intermediate for Carfilzomib There are major four ways on synthesis The first one is obtained by using L leucine as a starting...

4-Bromo-2-Hydroxybenzoic Acid  CAS 1666-28-0
4-Bromo-2-Hydroxybenzoic Acid CAS 1666-28-0

Model No. : 1666-28-0

4 Bromo 2 hydroxybenzoic acid is also known as 4 bromosalicylic acid CAS number is 1666 28 0 4 Bromo 2 hydroxybenzoic acid is conventionally produced by oxidation and acidification The general procedure is to mix the p bromotoluene water and...

Irreversible Proteasome Inhibitor Carfilzomib  868540-17-4
Irreversible Proteasome Inhibitor Carfilzomib 868540-17-4

Model No. : 868540-17-4

Carfilzomib cas number is 868540 17 4 which is an intravenously administered tetrapeptide epoxy ketone backbone proteasome inhibitor that selectively and irreversibly binds to the N terminus of the threonine active site of the 20S proteasome...

N-(3-HYDROXYPHENYL)ACETAMIDE CAS  621-42-1
N-(3-HYDROXYPHENYL)ACETAMIDE CAS 621-42-1

Model No. : 621-42-1

3 ACETAMIDOPHENOL or N 3 HYDROXYPHENYL ACETAMIDE CAS number is 621 42 1 molecular formula is C8H9NO2 Molecular weight is 151 16 appearance as an off white solid It can be used to make azo dyes and as a reagent and supplement There are dozens of...

PARP Inhibitor Olaparib CAS 763113-22-0
PARP Inhibitor Olaparib CAS 763113-22-0

Model No. : 763113-22-0

Olaparib CAS 763113 22 0 is a poly ADP ribose polymerase inhibitor abbreviated as PARP inhibitor He was approved by the FDA on December 19 2014 for the maintenance treatment of platinum sensitive recurrent BRCA mutant ovarian cancer patients and...

1,3,4,6,7,8-Hexahydro-2H-pyrimido[1,2-A]pyrimidine CAS  5807-14-7
1,3,4,6,7,8-Hexahydro-2H-pyrimido[1,2-A]pyrimidine CAS 5807-14-7

Model No. : 5807-14-7

1 3 4 6 7 8 Hexahydro 2H pyrimido 1 2 A pyrimidine CAS number is 5807 14 7 commonly known as bicyclic guanidine abbreviated as TBD He is an organic strong base that exhibits good catalytic effects on various organic reactions and polymerization...

Skeletal Muscle Relaxant Dantrolene Sodium CAS Number  24868-20-0
Skeletal Muscle Relaxant Dantrolene Sodium CAS Number 24868-20-0

Model No. : 24868-20-0

Dantrolene Sodium CAS number is 24868 20 0 Listed in multiple countries after 1974 He is a muscle relaxant that acts directly on skeletal muscles Its unique mechanism is directly applied to skeletal muscles It inhibits muscle contraction by...

China Contract Manufacturing Suppliers

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.




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