MicroSource Discovery Systems, Inc. was the first to introduce test compounds in microplate format.
In 1993 we launched this program and were greeted with enthusiasm and success.
Many research programs in Academia and the Pharmaceutical Industry have used our products in HTS development and new drug discovery programs.
MDSI has been a unique provider of quality screening libraries for over 20 years and continues to support drug discovery and the biology research industry.

MicroSource Discovery Systems is your "first" step in discovery.
We are an economical and comprehensive source for first assay explorations.


Many of our customers have published data relevant to the use of our products. These references are available for each product.
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We strive to deliver a level of service that exceeds the expectations of our customers.

If you have any questions about our products or services, please do not hesitate to contact us. We have friendly, knowledgeable representatives available seven days a week to assist you.