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A Custom Synthesis Company

Capot can synthesize and purify your complex molecules from 1g to 10MT+ with precision and reliability.

WE ARE CAPOT

Established in 1996, Capot Chemical Co., Ltd is a leading custom synthesis manufacturer headquartered in Hangzhou, P.R. China. As an ISO 9001:2015 certified company, Capot maintains a robust safety management system and delivers high-quality organic compounds for the global pharmaceutical and life sciences industries.

We specialize in the synthesis of fluorine-containing compounds, boronic acids, unnatural amino acids, cross linkers, chiral building blocks, heterocyclic compounds, and active pharmaceutical ingredients (APIs).

Learn More About Us

560+

Employees

60+

Audit Clients

1996

Year Founded

2

Production Sites

Our Core Services

With over 20 years of experience in custom synthesis, Capot offers end-to-end solutions for pharmaceutical development and manufacturing.

Custom Synthesis

We offer custom synthesis services for high-end chemicals, including novel molecule design, specialized reagents, fine chemicals, and the synthesis and large-scale manufacturing of pharmaceutical intermediates.

  • • Route scouting & optimization
  • • Multi-step synthesis
  • • Scale-up from mg to MT
  • • Regulatory support
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CRAMs (Contract Research & Manufacturing)

Full-service CRO/CMO solutions for the global pharmaceutical industry, including starting materials, key intermediates, and GMP-compliant products.

  • • Preclinical to commercial supply
  • • GMP & non-GMP manufacturing
  • • Analytical method development
  • • Regulatory documentation
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Core Technologies

Expertise in advanced synthetic methodologies to tackle complex and hazardous reactions with high efficiency and safety.

  • • Asymmetric synthesis
  • • C-H activation
  • • Flow chemistry
  • • Deuteration & green chemistry
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Featured Products & Building Blocks

Explore our high-purity chemical compounds used in drug discovery and development.

Fluorinated Compound

4-Fluoro-L-phenylalanine

CAS: 3993-91-5 | Purity: ≥99%

Used in PET imaging and peptide therapeutics.

Boronic Acid

Phenylboronic Acid

CAS: 98-80-6 | Purity: ≥98%

Key Suzuki coupling reagent for API synthesis.

Chiral Building Block

L-tert-Leucine

CAS: 13734-41-1 | Purity: ≥99%

Chiral auxiliary in asymmetric synthesis.

Heterocyclic Compound

Indole-3-carboxylic acid

CAS: 487-89-8 | Purity: ≥98%

Intermediate in tryptophan analogs and kinase inhibitors.

Cross Linker

BSOCOES

CAS: 106628-80-8 | Purity: ≥95%

Bis-sulfone cross-linker for protein conjugation.

Unnatural Amino Acid

Azidohomoalanine (AHA)

CAS: 86508-38-7 | Purity: ≥98%

Bioorthogonal labeling in metabolic engineering.

Deuterated Compound

D8-Tyrosine

CAS: 100449-81-2 | Purity: ≥99%

Internal standard for mass spectrometry.

Pharmaceutical Intermediate

Sitagliptin Intermediate

Purity: ≥99%

Key chiral intermediate for diabetes medication.

Advanced Core Technologies

  • Advanced Catalysis: Pd, Ni, Cu, and organocatalysis for C-C, C-N, C-O bond formation.
  • Asymmetric Synthesis: Chiral ligands and catalysts for enantioselective transformations.
  • C-H Activation: Direct functionalization to streamline synthesis.
  • Flow Chemistry: Continuous processing for improved safety and scalability.
  • Green Chemistry: Solvent reduction, atom economy, and sustainable processes.
  • Deuteration: Isotope labeling for metabolic stability and pharmacokinetics.
Capot Technology Lab

State-of-the-art R&D and manufacturing facilities in Hangzhou, China.

Trusted by Global Pharma Leaders

20+
Years Experience
ISO 9001:2015
Certified
EcoVadis
Bronze Medal
10MT+
Scale Capacity

Latest Events

CPhI Japan 2026

April 21–23, 2026 | Booth #2E-46

CPHI Frankfurt 2025

October 28–30, 2025 | Booth #5.0A81

CPHI China 2025

June 24–26, 2025 | Booth #E7E26

Latest News

Capot Wishes You a Merry Christmas and Happy New Year!

December 11, 2025

Capot Awarded EcoVadis Bronze Medal

Ranked ahead of 84% globally – May 22, 2025

Notice for 2025 Chinese New Year Holiday

January 24, 2025

Get in Touch

Ready to start your next synthesis project? Contact Capot today for a quote or technical consultation.

Phone: +86 (0)571-855 867 18

Fax: +86 (0)571-858 647 95

Email: sales@capot.com

Wanlun Sci Park, No.88 Jiangling RD, Hangzhou, Zhejiang, China, 310051

Visit Official Website to Contact

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