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Senn - cosmetic lab in Switzerland
Presentation of Senn

Located in Dielsdorf near Zürich, Senn Chemicals cosmetic lab has served pharmaceutical and biotechnology industries since 1963. The facility specializes in peptide synthesis and amino acid derivatives, operating from its headquarters at 6 Ruchwiesenstrasse.
- Solution phase synthesis up to 2,500L capacity
- cGMP-compliant manufacturing
- FDA-approved production facilities
- Advanced peptide fragment development
With its Swiss precision manufacturing and strategic location in the Zürich region, Senn Chemicals delivers pharmaceutical-grade compounds across Europe and globally.
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Pioneering Swiss chemical manufacturing since 1963
Senn Chemicals, established in 1963 by Guido Senn, operates from Dielsdorf, near Zurich, Switzerland. The company has built its reputation in amino acid building block synthesis, serving various industries including pharmaceutical, biotechnology, and cosmetic lab sectors.
Advanced manufacturing capabilities
Operating from a state-of-the-art facility in Dielsdorf, Senn Chemicals specializes in peptide synthesis and amino acid derivatives production. The company’s manufacturing capacity includes solution phase synthesis facilities up to 2,500L, enabling the production of complex peptides using both linear and convergent strategies.
Technical expertise and quality assurance
The Swiss facility maintains high manufacturing standards with:
- Solution and solid phase synthesis capabilities
- Advanced preparative HPLC systems
- Lyophilisation technology
- cGMP-compliant manufacturing processes
- Regular US FDA facility inspections
Services across multiple industries
From their Zurich region facility, Senn Chemicals provides:
- Custom peptide manufacturing
- Amino acid derivatives production
- Small molecule synthesis
- API development and production
Strategic location and future growth
Based in Switzerland’s biotechnology hub, Senn Chemicals leverages its location to serve global markets. The company is expanding its production capabilities to meet increasing demand in the peptide market, with a focus on API production and contract development services.
Quality standards and compliance
Operating under Swiss quality standards, the Dielsdorf facility maintains strict adherence to international manufacturing regulations, positioning Senn Chemicals as a reliable partner for pharmaceutical and biotechnology manufacturing projects.
Services provided by Senn
Below you will find the services provided by Belchem. Like each cosmetic lab on the platform, the services are manually registered by the providing company.
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Senn opening hours
What does Senn Chemicals manufacture?
Senn Chemicals produces the following:
- Peptides and peptide fragments
- Linear peptides up to 40+ amino acids
- Convergent synthesis strategies
- Solution phase synthesis up to 2,500L scale
- Amino acid derivatives
- Fmoc protected
- Boc protected
- Z protected
- Small molecules for:
- Pharmaceutical applications
- Biotechnology research
- Diagnostic reagents
- Cosmetic ingredients
What are Senn Chemicals' technical capabilities?
The company’s operations include:
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The facility operates under cGMP guidelines for pharmaceutical and biotechnology manufacturing.
Where are Senn Chemicals' facilities located?
The company operates from its headquarters in:
Senn Chemicals AGDielsdorf
Zurich Region
Switzerland
The facility includes:
- Manufacturing areas
- cGMP production suites
- Solution phase reactors
- Solid phase synthesis units
- Quality control
- Analytical laboratories
- Stability testing chambers
- Documentation center
- Research & Development
- Process development labs
- Scale-up facilities
- Pilot plant
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