CompoundList
Chemical category

Building blocks and research compounds

Organic building blocks, fragments and screening compounds for medicinal chemistry, agrochemical discovery and materials research.
Chemicals
352.1K
Suppliers
7,518
Subcategories
9
Racks of small vials in a compound library
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Subcategories of building blocks and research compounds

9 narrower families, each with its own chemicals and suppliers.

About building blocks and research compounds

Building blocks are small organic molecules with useful functional groups that chemists combine to make new compounds. This section covers heterocyclic, aromatic and aliphatic building blocks, boronic acids and esters, protected and unnatural amino acids, chiral building blocks, fluorinated building blocks, fragment compounds and screening compounds for drug, agrochemical and materials discovery.

Read more about building blocks and research compounds

CompoundList places an organic compound here when it has no known established industrial, pharmaceutical or consumer use, which is the case for most of the millions of catalogued research compounds. Many of these molecules are made by specialist suppliers in milligram to kilogram quantities, either from stock or on demand.

Discovery chemists value speed and reliable identity. When you request quotes, give the CAS number or the structure (you can draw or paste a SMILES string in structure search), the quantity, the minimum purity and the analytical data you need, usually 1H NMR and LC-MS. Ask whether the compound is in stock, where it ships from, and the lead time if it is made to order. For larger scale-up quantities, ask about the synthetic route, impurity profile and the ability to deliver repeat batches with consistent quality.

Top building blocks and research compounds

Showing 1 to 48 of 352,114 chemicals, most searched and traded first.

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Top suppliers of building blocks and research compounds

Manufacturers and traders with live products in this category. Paid members appear first.

Building blocks and research compounds suppliers by country

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New building blocks and research compounds from suppliers

Products recently listed by manufacturers and traders in this category.

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Latest buy requests for building blocks and research compounds

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Guides for buyers

Practical reading on grades, documents, regulation and shipping before you buy.

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Frequently asked questions

Quick answers about buying building blocks and research compounds on CompoundList.

Why is a compound listed as a building block?

CompoundList places organic compounds here when they have no known established industrial, pharmaceutical or consumer use. Most catalogued research compounds fall into this group, sorted by structure.

Can I search by structure?

Yes. Use structure search to draw a molecule or paste a SMILES string, then search for exact matches, similar compounds or substructures.

What analytical data should I expect?

For research quantities, 1H NMR and LC-MS are standard, with purity usually at least 95 percent. For chiral compounds ask for enantiomeric excess, and for scale-up batches ask for a full certificate of analysis.

What does make-on-demand mean?

The supplier synthesises the compound after you order it, using a validated route. Lead times are usually a few weeks, and success rates and prices are confirmed in the quote.

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Cannot find the building blocks and research compounds you need?

Post one buy request with the grade, quantity and destination. Matching suppliers send you quotes, and your contact details stay private until you accept one.