Additional Information

FREQUENTLY ASKED QUESTIONS

Making a Purchase from MicroSource Discovery Systems Inc. (MDSI)

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Our full list of products with prices is available on request. Structures of the compounds in any collection are provided as sd files or a hardcopy catalog if required.
MDSI only accepts formal purchase orders with billing and shipping addresses included. Please have you purchasing department contact us if they need any additional information. Formal quotes can also be prepared.
Yes, we offer a 10% academic discount off of our list prices.
It takes 2 to 3 weeks from the receipt of your purchase order to ship the product.
The plates are packed horizontally in a Styrofoam box with dry ice, surrounded by ice packs and Styrofoam chips. This arrangement keeps the plates frozen, horizontal and immobile. The carrier is Federal Express or occasionally Nippon Express for international orders.

Product Packaging

We use 96 well Thermo Scientific Matrix 1.4 ml -catalog# 4247 racks with Matrix Cap Strips catalog# 4415. Please contact us if you have the need to use any other 96 well plate or format.
The DMSO solutions will remain frozen to ~10*C. All solutions are prepared at room temperature and stored frozen at -20*C or lower and kept under nitrogen. On receipt, transfer the plates to a freezer and store them horizontally.
We ensure that the compounds in our collections are greater that 95% pure, however, a few macromolecular compounds are mixtures of isomers as referenced in the Merck Index. Examples are Bacitracin, Bleomycin, Colistin, Enoxiparin, Gramicidin and Teicoplanin. The solutions are stable. A few compounds, if kept at room temperature for long periods, may decompose through oxidation or addition reactions with DMSO. After use and prior to storage:

1. Flush the wells containing the compound solutions with nitrogen or argon. This is accomplished by use of a gently stream of the inert gas as the wells are recapped.

2.Store the resealed plates at -20C or lower.

3. When the plates are retrieved, do not remove the caps until the plates are at room temperature.

4. Do not attempt to store solutions diluted in buffer; precipitation will occur. Under such conditions the compounds in the collection should be stable (>98%) for several years.

Supplements to our Products


Yes, MDSI offers all of their customers the opportunity to purchase additional supplemental plates.
Yes, we sell follow-up compounds. Our minimum purchase is 10mg per compound (larger samples are available).
Each compound is individually priced. Send your list to us electronically and we will return with a quote. Please include the 8-digit ID number and name.
We also offer all of our collections as powders in glass vials as either 5mg or 10mg samples. We do not sell partial sets of our collections.




 

 

References

Many of our customers have published data relevant to the use of our products. These references are available for each product.
Click here.

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Our Commitment

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.