Building Blocks Catalog

300 Thousand compounds in stock

Original and unique

Make-on-demand
Building Blocks

1B novel building blocks

Reliable supply

Custom Synthesis

Over 650 highly skillful chemists

Unique synthesis technologies

Library Synthesis

48B Billion REAL compounds and

Custom Library Synthesis

FTE Chemistry Support

On site access to all Enamine stock BB’s

Highly flexible arrangements

2 000 new building blocks are synthesized monthly. Here is an important update to our MedChem Highlights from March 2024

Recent News

  • 11 April 2024   Press Release

    Metrion Biosciences enhances High Throughput Screening services with access ...

    Cambridge, UK and Kyiv, Ukraine, 11 April 2024: Metrion Biosciences Limited (“Metrion”), the specialist ion channel and cardiac safety screening contract research organisation (CRO) and drug discovery company, and Enamine Ltd (“Enamine”), the global leader in supplying small molecules and early drug discovery services, announced that Metrion has enhanced its High Throughput Screening (HTS) services with the addition of access to Enamine’s compound libraries.

  • 27 March 2024   Press Release

    Enamine Announces Expansion of Its Library Synthesis Capabilities

    March, 2024, Kyiv, Ukraine. Enamine Ltd, the global leader in supplying small molecules and early drug discovery services, announces the expansion of its library synthesis capabilities with a focus on Enamine REAL compounds to further support the growing demands of agricultural and pharmaceutical companies, research institutes, and drug discovery centers.

  • 01 March 2024   News

    Enamine and Genez International Announce Strategic Collaboration to Launch ...

    We are excited to announce a strategic collaboration between Enamine, the world's leading provider of chemical building blocks, compound libraries, and biology services, and Genez International, a prominent enterprise with 15 years of experience in cross-border supply management, biopharmaceutical research and development, semiconductor equipment, and high-definition digital imaging systems.

Upcoming events

Enamine makes a new release of REAL database comprising 680 million structures and announces sales with 20% off for requests received online

The next release of REAL database comprises 680 million distinct small molecules and by far is the largest offer of commercially available compounds on the market. REAL (readily accessible) compound is a virtual chemical compound which synthesis can be performed in a parallel way at Enamine with high (at least 80%) probability of success. A collection of the REAL compounds composes REAL database – a pool of novel highly feasible compounds that can be used in compound collection enhancement programs, virtual screening and identification of analogues during hit explosion in hit-to-lead. You can conveniently search REAL database online at EnamineStore.com and benefit from 20% discount for you online requests in the period between July 15 and September 15, 2018!

The REAL compounds are produced in one synthetic step from the qualified building blocks via well-validated parallel chemistry procedures within only 3 weeks. The completeness of syntheses is so high (frequently reaching 100%) that acquisition of REAL compounds resembles purchases from stock collection. A usual purchase order can be raised.

Compared to the previous version additional enumerations of 4,500 new building blocks and 20 new reaction procedures gave 350 million new REAL compounds and doubled the size of REAL database. These new compounds have no close analogues in the purchasable space of 17 million molecules: over 60 per cent new REAL compounds have neighbors with Tanimoto similarity coefficient of less than 0.6.

Tanimoto similarity coefficient

REAL database is one of the options to access REAL compounds. REAL Space Navigator, a chemoinformatics tool jointly developed with BioSolveIT, does not maintain the huge number of REAL compounds but generates them on the go thus affording a powerful and convenient option to search for analogues in theoretical space of 3.8 billion REAL compounds!

Please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. to receive more information and request downloading of REAL Database.

FOLLOW US