Enamine and UkrOrgSynthesis Ltd (UORSY), a leading Ukrainian supplier of chemical building blocks and compounds for high-throughput screening, announced they have signed a collaboration agreement to offer chemical building blocks to the drug discovery industry cooperatively. By combining their catalogues, the companies become the largest global manufacturer and seller of building blocks, with 60 000 products available from stock for immediate delivery and an array of ca. 8 million tangible building blocks deliverable with synthetic success rate of 80%.