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Synthetic Chemicals & Building Blocks from ChemPUR
From boronic acids to fluorinated building blocks – ChemPUR supports research and development with high-quality synthetic chemicals.
Synthetic Building Blocks for Research & Development
Specialty Chemicals for Modern Synthesis
In collaboration with Angene Chemical, BLDpharm, Fluorochem, Glentham Scientific, and TargetMol, ChemPUR offers a broad portfolio of synthetic chemicals, building blocks, and fluorinated specialty chemicals. The product range also includes organic reagents, heterocyclic intermediates, and selected synthetic building blocks. With an international distributor network, ChemPUR reliably supports research and development projects.
Suitable Chemicals
We support you in selecting the appropriate synthetic chemicals and building blocks for your project.





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Which synthetic chemicals does ChemPUR offer?
At ChemPUR, in collaboration with BLDpharm, Angene Chemical, and Fluorochem, we offer an extensive range of organic synthetic chemicals and specialized reagents for your projects in research, development, or industrial applications. Our product range currently includes over 3,000 organics as well as numerous organic intermediates and functionalized building blocks for demanding chemical applications. These include halides, esters, amines, nitriles, functionalized aromatics, and heterocyclic compounds. Building blocks for pharmaceutical and agrochemical research, as well as for university basic research projects, are particularly well represented. BLDpharm and Angene Chemical offer a broad portfolio of heterocyclic intermediates and specialized synthetic building blocks for medicinal chemistry and drug discovery.
We also carry selected boronic acids, fluorinated intermediates, sulfonyl chlorides, piperazines, and pyrimidines for modern synthesis methods and cross-coupling reactions. Many of our products are used in drug development, natural product synthesis, analytics, and materials science. The range is complemented by fluorinated specialty chemicals, silanes, and siloxanes from our collaboration with international manufacturers such as Fluorochem.
In addition to standard products, we also support our customers with project-specific requirements and customized synthesis solutions. Through our international distributor network and exclusive manufacturer partnerships, we offer access to a very broad portfolio of high-quality fine chemicals for research and industry.
What are building blocks in chemistry?
Building blocks are chemical synthetic components that serve as starting compounds for the targeted construction of new molecular structures. They enable the efficient and flexible production of complex compounds and are among the most important foundations of modern synthetic chemistry today.
Building blocks are used particularly in pharmaceutical research, agrochemical development, and materials science to develop new active ingredients, functional materials, or specialized intermediates. By combining different synthetic building blocks, chemical properties can be specifically influenced and new structures can be built efficiently.
ChemPUR offers an extensive range of specialized building blocks and intermediates for research and development. These include boronic acids, heterocyclic compounds, fluorinated building blocks, sulfonyl chlorides, and other organic intermediates for demanding synthesis projects. Thanks to our many years of experience, international manufacturer partnerships, and personal expert advice, we support research institutions, development departments, and industrial users in selecting suitable synthetic building blocks for a wide variety of applications.
For which applications are building blocks suitable?
Building blocks are used wherever new chemical compounds are to be specifically developed, modified, or optimized. They serve as flexible starting components for organic synthesis and enable efficient reaction pathways in research and development projects. Typical areas of application include pharmaceutical research, the development of new active ingredients, the agrochemical industry, and materials science. Building blocks also play an important role in natural product synthesis, analytical chemistry, and screening projects. Their functional groups allow molecular structures to be specifically adapted to desired properties.
Specialized synthetic building blocks are used particularly in modern coupling reactions, the development of heterocyclic compounds, or fluorinated molecules. They support researchers in efficiently producing new compounds and specifically simplifying synthesis processes. ChemPUR supplies a wide range of high-quality building blocks and organic intermediates for research, development, and industrial applications. Our products are used in university research institutions as well as in laboratories in the chemical and pharmaceutical industries.
Which boronic acids does ChemPUR carry?
ChemPUR offers a specialized product line of boronic acids and boronic esters for modern organic synthesis and cross-coupling reactions. Of particular note is our range of unusual arylboronic acids, heterocyclic boronic acids, and pinacol esters. A special focus is placed on heterocyclic derivatives for demanding applications in pharmaceutical and agrochemical research.
Boronic acids are among the most important intermediates in modern synthetic chemistry. Their central application is in Suzuki coupling, a palladium-catalyzed cross-coupling reaction for the production of complex aryl-aryl compounds. This reaction enables efficient access to natural products, pharmaceutical active ingredients, and functional materials with high selectivity.
In addition to classic boronic acids, ChemPUR also carries fluorinated boron compounds as well as suitable reaction partners and complementary synthetic building blocks. Our products are used in drug development, materials research, liquid crystal chemistry, and combinatorial chemistry, among others. In addition, we offer the corresponding palladium catalysts and other reagents for related coupling reactions. An overview of selected boronic acids is also available in the download area.
Which heterocycles does ChemPUR offer?
Heterocycles are among the most important basic structures in modern synthesis and drug research. They are specifically used to influence the chemical properties, reactivity, and biological activity of molecules and therefore play a central role in pharmaceutical, agrochemical, and materials science research.
Together with BLDpharm, Angene Chemical, and Fluorochem, ChemPUR offers a diverse range of heterocyclic building blocks and intermediates for research and development. These include nitrogen-containing heterocycles such as pyridines, pyrimidines, pyrazoles, triazoles, imidazoles, indazoles, and quinazolines. The portfolio is complemented by oxygen- and sulfur-containing compounds such as oxazoles, oxazolines, thiazoles, isoxazoles, and oxadiazoles.
Many of these compounds are used as synthetic building blocks for new active ingredients, functional materials, or specialized intermediates. BLDpharm and Angene Chemical offer a particularly broad portfolio of classic heterocyclic building blocks for medicinal chemistry and drug discovery. Fluorochem complements the range with fluorinated heterocycles and specialty compounds for demanding research and development projects. Thanks to our international manufacturer partnerships, we can also reliably provide rare and hard-to-find heterocycles.
Which purities does ChemPUR offer?
ChemPUR stands for high-quality fine chemicals and high-purity specialty compounds for research, development, and industrial applications. Our portfolio includes high-purity to ultra-high-purity chemicals and synthetic building blocks for demanding applications in the laboratory and industry. We place particular value on reliable product specifications, reproducible quality, and high delivery reliability.
Depending on the product group and area of application, we offer different purity grades and specifications. Many of our specialized building blocks, intermediates, and ligands are available with high analytical purities and are suitable for sensitive synthesis and research processes. High product quality is crucial for reproducible results, especially for heterocyclic compounds, fluorinated specialty chemicals, and pharmaceutical intermediates.
Our quality management has been ISO 9001 certified since 2011. We also work closely with international manufacturers and specialized suppliers to ensure consistently high quality standards. In addition to standard qualities, we support our customers with individual requirements, special purities, or project-specific specifications. Especially in pharmaceutical research, analytics, and materials science, our customers benefit from precise product quality and expert advice.
Which industries does ChemPUR supply?
Whether it is a university research laboratory, an industrial development department, or specialized analytics – high-quality synthetic chemicals and building blocks are used wherever new materials, active ingredients, or synthesis pathways are being developed.
Imagine a research team developing a new pharmaceutical active ingredient and needing a rare heterocyclic synthetic building block in high purity at short notice. Or a development department looking for fluorinated intermediates to optimize material properties and reactivity. ChemPUR supplies suitable specialty chemicals for research and development for exactly these types of applications.
Our products are used in the pharmaceutical and chemical industries, agrochemical research, materials science, as well as in universities, institutes, and analytical laboratories. Our building blocks also support demanding development processes in screening projects, natural product synthesis, or modern cross-coupling reactions. Thanks to many years of experience, international manufacturer partnerships, and personal expert advice, ChemPUR supports customers not only in product procurement but also with individual requirements and special research projects.




