DKM Scientific

Dynamic Key Med(DKM)--- Active Compounds

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Frequently Asked Questions

If your questions are not listed below, please contact technical support: support@DKMac.com

How should the product be used?

All our products are strictly for laboratory research use ONLY. They should not be used for pharmaceutical, agricultural, cosmetic, food, household or any other human use.
If published data of Ki or IC50 values are available for an inhibitor, it is recommended to use 5-10 times higher than these values to maximize the inhibitory effect.
Biological data, background information and references are all listed on our product webpage for your guidance, but they are not always up-to-date or fully comprehensive. Therefore, we suggest you also carry out your own literature research before starting the experiment.

Why do my products arrive at room temperature when the indicated storage temperature is +4°C or -20°C?

If the products are delivered at room temperature, it means they are stable during shipping and proper handling. Normally, storage in the refrigerator or freezer is only required for long-term storage and products in powder form can store up to 2 years at -20°C

How do I sterilize the working solution?

We suggest you to use filters to sterilize the working solution. DO NOT sterilize the working

Product purity and quality: what is it and how is it determined?

Our biochemicals are of very high purity, typically >99%. Chemical purity and quality are determined using a comprehensive range of techniques, including HPLC, chiral HPLC, NMR, microanalysis, optical rotation, TLC, and mass spectrometry. Details are provided on the Certificate of Authenticity that accompanies each product.

What should I do if I can't see any product in the vial?

Products sold in small quantities may not be readily visible, as they can coat the bottom or walls of the vial. It is therefore important that you ensure that solvent comes into contact with all areas of the vial when stabilizing your product.

Do different batches of a product always look the same?

Occasionally, different batches of the product may look slightly different in color and appearance. But it will not affect purity, quality or performance of the product.

How do I dissolve my product?

Stabilization instructions can be found on the Certificate of Authenticity accompanying your product, or on the website. Some products may be difficult to solubilize, and you may find that rapid stirring, warming in a water bath, or sonication of the solution may help.
Solubility is temperature dependent. As such, cooling or freezing solutions may lead to precipitation of the product out of solution. It is therefore important to ensure that your product is completely re-dissolved before use.

Molecular weight and molecular formula

The molecular weight and formula published on our website represent the molecular weight and formula of the product as depicted in the chemical structure displayed on our website. However, molecular weights (and formulae) can vary slightly from batch to batch - due to water composition, or due to a change of salt. These changes will be indicated on the Certificate of Authenticity that accompanies your product. The changes should not affect the biological activity of your product, but it is important that you take them into account when making up solutions. You should therefore always use the batch molecular weight as stated on the Certificate of Authenticity or the vial label.

CAS registry numbers

To help you more easily identify a chemical, we provide CAS registry numbers for our products. CAS registry numbers are unique numerical identifiers for chemical substances. The Chemical Abstracts Service (CAS), a division of the American Chemical Society, assigns these identifiers to every chemical that has been described in the literature. Please note, that whilst these are given as accurately as possible on our website, they may not always reflect the level of hydration or salt of the product supplied.

Biological Activity

To assist you in your product selection, we provide a brief summary of the biological properties of our products, together with some suggested reading (references) that you may find useful. Please note, that whilst this information is given as accurately as possible on our website, it may not always reflect the latest findings and is not exhaustive. It is intended as a guide only and we therefore recommend that you carry out your own search of the scientific literature for full details of the product's biological activity.

Citations

We are often asked for examples of publications which cite DKM. We try to provide examples of these with our product data wherever possible. If you or your colleagues publish a paper which cites DKM Technology as the source of one or more of your materials, please send us the details - and we will send you a free gift!

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