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Chemical building blocks

From basic functionalised heterocycles to advanced low-weight molecules bearing reactive functional groups, we offer a wide range of speciality building blocks to aid your medicinal chemistry research

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Pharmaceutical stable isotopes

Explore our extensive range of isotopically labelled products for your pharmaceutical research, analysis and screening needs

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Custom synthesis solutions

Our world-leading synthetic chemists are ready to solve your product sourcing challenges, engineering complex synthetic pathways to deliver products from pharmaceutical intermediates and peptides to impurities

Custom synthesis solutions
  • Chemical building blocks

    Explore our entire building block range

  • Pharmaceutical stable isotopes

    Explore our range of isotopically labelled pharmaceutical products

  • Custom synthesis solutions

    Request a custom quote for your custom synthesis needs

Science for a safer world
Science for a safer world

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John Smith

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For decades we have supported the pharmaceutical community with more than 10,000 high-quality reference standards for pharmaceutical quality control from sources all over the world. Our quality enables your accuracy, helping you to create ever better, safer medicines: products in our Mikromol range of more than 5,000 pharmaceutical API, impurity and excipient reference standards each come with a comprehensive Certificate of Analysis detailing the material’s characterisation process, ensuring its suitability for both qualitative and quantitative analysis. Our dedicated analytical, synthesis and customer service teams go beyond the standard, and our depth of knowledge, decades of manufacturing experience and scientific excellence ensure your peace of mind. Since 1975, we have led the way in providing pesticide reference standards. Today, our portfolio has expanded to adapt to changing regulations and technology, to support your need for high quality reference materials for your food, beverage and cannabis testing. Our portfolio stands apart from the crowd in its commitment to quality, producing to the highest standard and providing expert analytical support and documentation, so that you know you are receiving products you can trust.
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