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ChemSpider is a free chemical structure database providing fast access to over 26 million structures, properties and associated information.

Buyers Guide for Chemicals is a directory of chemicals, chemical suppliers and producers. More than 310,000 products, 860,000 supply sources and 5,122 company addresses.

MolPort is a platform for chemical sourcing and logistics. MolPort is advanced chemical marketplace, made for the research scientists in the chemical community. With the best possible molecule structure search engine and easy solution for sales, paym...

Chemical Suppliers World Wide. Interactive quote system for managing your chemical supply chain.

Debye Scientific,fine chemicals, API, Intermediates,natural extract,synthesize Chemical,chemical, - PHPOK.COM

BOC Sciences provides a wide range of customer services, bulk and specialty compounds to the pharmaceutical, agrochemical and biotechnology industries. We intend to offer you the products and services of the highest quality at the most reasonable, co...

Welcome to synblock! We are a leading chemical R&D company that supports the commercial development of small molecule drug discovery and development in pharmaceutical, and biotechnology companies. Our products and services parallel the drug disco...

NIST site provides chemical and physical property data on over 40,000 compounds.

Providing Research Chemicals and Building Blocks - Matrix Scientific has been serving the research community for over 45 years!

ChemExper is a company joining together the areas of chemistry, computer science and telecommunication. The ChemExper Chemical Directory is a free service that allows to find a chemical by its molecular formula, IUPAC name, common name, CAS number, c...