Place your order now and receive a complimentary 2026 MedChemExpress calendar with every shipment, with no minimum order required. Explore our wide range of inhibitors, screening libraries, and proteins to plan your research for the year ahead.
100,000+ Inhibitors & Agonists
Targeting 1,000+ key proteins in 20+ signaling pathways.
Available as analytical standard and GMP grade, including Isotope-labeled compounds, Reference Standards, GMP Small Molecules.
Widely used in leading research areas of biology, chemistry, medicine and pharmacology.
High purity, superior quality, and stringent quality control.
Biological activity validated by researchers worldwide.
Diverse types: ASOs, siRNAs, miRNAs, aptamers, CpG ODNs, cap analogs, probes, etc.
Comprehensive modifications: 2’-F, 2’-Ome, 2’-MOE, phosphorothioate (PS), locked nucleic acid (LNA), Cy3, and Cy5, and more.
Strong synthesis capacity: flexible scales from milligrams to kilograms.
ADC related products: Antibodies, Payloads, Linkers, ADC drugs, etc.
20+ GMP small molecules for ADC: (Payloads, Drug-Linker Conjugates and related intermediates).
One-stop services: design and synthesis drug-linker conjugates, custom ADCs and more.
Derived services: synthesis PAC, AOC, PDC, ApDC, FDC, RDC, ISAC, VDC, SMDC, etc.
MCE One-stop Compound Screening Platform

Full-process drug development services covering compound library supply, screening services, lead compound optimization, and customized synthesis of compounds for preclinical and clinical studies.

Different libraries meet different research needs!

MegaUni 10M Virtual Diversity Library
10 million make-on-demand diversity compounds.
Novel structure with excellent diversity, each BMS scaffold containing 1 to 5 molecules, easy to synthesize via standard 1-2 step procedures.
Suitable for AI screening and virtual screening.
75,000+ MCE Diversity Compound Libraries
Mostly compatible with Lipinski’s Rule of Five and free of pan assay interference compound (PAINS) motifs.
Suitable for new drug development.
MCE Bioactive Compound Libraries:
General Library Series
Drug Repurposing Series
Metabolic Library Series
Natural Product Series
Disease-related Series
Classification
by Structure Series
Classification
by Pathway Series
Classification
by Character Series
Hot-Selling Bioactive Compound Libraries Recommendation:
Cat. No Product Name Number of Compounds
HY-L009 Kinase Inhibitor Library 3,400+
HY-L021 Natural Product Library 5,000+
HY-L022 FDA-Approved Drug Library 3,200+
HY-L028 CNS-Penetrant Compound Library 1,000+
HY-L030 Human Endogenous Metabolite Compound Library 1,000+
HY-L036 Covalent Screening Library 1,500+
HY-L041 Macrocyclic Compound Library 400+
HY-L043 Lipid Compound Library 1,600+
HY-L105 Peptide Library 2,000+
HY-L151 PROTAC Library 400+
Please Note
1. This promotion is exclusively available in Europe (including the UK).
2. 2026 MCE calendar with every shipment, with no minimum order required.
3. For inquiries, please contact us at eu.sales@medchemexpress.com.
4. MCE reserves the right of final interpretation.
Explore our wide range of inhibitors, screening libraries, and proteins to plan your research for the year ahead.
Place your order now and receive a complimentary 2026 MedChemExpress calendar with every shipment, with no minimum order required. Explore our wide range of inhibitors, screening libraries, and proteins to plan your research for the year ahead.
100,000+ Inhibitors & Agonists
Targeting 1,000+ key proteins in 20+ signaling pathways.
Available as analytical standard and GMP grade, including Isotope-labeled compounds, Reference Standards, GMP Small Molecules.
Widely used in leading research areas of biology, chemistry, medicine and pharmacology.
High purity, superior quality, and stringent quality control.
Biological activity validated by researchers worldwide.
Diverse types: ASOs, siRNAs, miRNAs, aptamers, CpG ODNs, cap analogs, probes, etc.
Comprehensive modifications: 2’-F, 2’-Ome, 2’-MOE, phosphorothioate (PS), locked nucleic acid (LNA), Cy3, and Cy5, and more.
Strong synthesis capacity: flexible scales from milligrams to kilograms.
ADC related products: Antibodies, Payloads, Linkers, ADC drugs, etc.
20+ GMP small molecules for ADC: (Payloads, Drug-Linker Conjugates and related intermediates).
One-stop services: design and synthesis drug-linker conjugates, custom ADCs and more.
Derived services: synthesis PAC, AOC, PDC, ApDC, FDC, RDC, ISAC, VDC, SMDC, etc.
MCE One-stop Compound Screening Platform

Full-process drug development services covering compound library supply, screening services, lead compound optimization, and customized synthesis of compounds for preclinical and clinical studies.

Different libraries meet different research needs!

MegaUni 10M Virtual Diversity Library
10 million make-on-demand diversity compounds.
Novel structure with excellent diversity, each BMS scaffold containing 1 to 5 molecules, easy to synthesize via standard 1-2 step procedures.
Suitable for AI screening and virtual screening.
75,000+ MCE Diversity Compound Libraries
Mostly compatible with Lipinski’s Rule of Five and free of pan assay interference compound (PAINS) motifs.
Suitable for new drug development.
MCE Bioactive Compound Libraries:
General Library Series
Drug Repurposing Series
Metabolic Library Series
Natural Product Series
Disease-related Series
Classification
by Structure Series
Classification
by Pathway Series
Classification
by Character Series
Hot-Selling Bioactive Compound Libraries Recommendation:
Cat. No Product Name Number of Compounds
HY-L009 Kinase Inhibitor Library 3,400+
HY-L021 Natural Product Library 5,000+
HY-L022 FDA-Approved Drug Library 3,200+
HY-L028 CNS-Penetrant Compound Library 1,000+
HY-L030 Human Endogenous Metabolite Compound Library 1,000+
HY-L036 Covalent Screening Library 1,500+
HY-L041 Macrocyclic Compound Library 400+
HY-L043 Lipid Compound Library 1,600+
HY-L105 Peptide Library 2,000+
HY-L151 PROTAC Library 400+
Please Note
1. For inquiries, please contact us at sales@medchemexpress.cn.
2. MCE reserves the right of final interpretation.
1. This promotion is exclusively available in India.
2. For inquiries, please contact us at in.sales@medchemexpress.com.
3. MCE reserves the right of final interpretation.