EvoBlocks Catalog
The published SDF used by the website’s catalog and structure search. This download updates whenever a new draft is published.
Download CatalogHeterocyclic chemistry · Made in Hungary
The building blocks
your chemistry needs.
Reliable heterocyclic compounds, from catalog products to custom synthesis—delivered by a team with more than two decades of practical organic chemistry experience.
8,000+ supported compounds1,000+ in stock14 days standard synthesis
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Catalog compoundCatalog record
A rotating selection from the current EvoBlocks catalog.
Compound libraries
Get the structure files.
Download the current searchable catalog, or use the structure search below.
Screening & Stock Compounds
A smaller, approximately 2,000-compound SDF for screening, combinatorial chemistry and biological testing. Download only; it will not appear in website search.
Catalog & structure search
Start with the molecule.
Draw a substructure, paste SMILES, search an identifier, or open a scaffold family.
Browse by heterocyclic scaffoldLive catalog counts
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From idea to vial
Custom synthesis without the black box.
Clear scope, direct technical communication, and a practical route from reference structure to a characterized compound.
Route assessment
Your target is reviewed by chemists for feasibility, route, scale and timeline.
Purpose-built synthesis
Focused heterocyclic expertise, from established scaffolds to non-catalog targets.
Documented delivery
Compound, analytical documentation and delivery details in one clear handoff.
Deliberately dependable
Good chemistry is only useful when it arrives as promised.
Standard custom-synthesis target of 14 business days
Direct communication from a Hungary-based team
Analytical documentation matched to the delivered compound
20+
years of practical custom-synthesis experience
“Good chemistry starts with people who understand your work.”