Bio Expo Online / Screening Compounds / Pharmacological Standards Libraries

BIOMOL International/Affinity United Kingdom
Peptide-based products.

CalBiochem/EMD Biosciences United States
Together EMD Biosciences and Merck Biosciences are the research reagents group of the Life Science Products division of Merck KGaA. Merck KGaA was founded in 1668 in Darmstadt, Germany, and now has more than 34,500 employees in 53 countries.

Prestwick Chemical Washington D.C. United States
Prestwick Chemical sells smart chemical libraries and offers services in medicinal chemistry.

Sigma Aldrich Library of Rare Chemicals United States
A leading life science and high technology company

Tocris United Kingdom