QHow long does sonication usually take?
AThe sonication time depends on the amount and concentration of the substance
QCan the inhibitor DMSO stock solution be directly diluted with buffer to create a gradient?
AIn most cases, it can dissolve. However, sometimes organic reagents may precipitate when directly added to an aqueous medium. It is recommended to first dilute the inhibitor with DMSO to form a gradient, and then add the diluted inhibitor to the buffer or cell culture medium. Some inhibitors may only dissolve in the aqueous phase at their working concentrations.
For example, if a final concentration of 1 μM is desired in cell experiments, the 10 mM DMSO stock solution can be diluted to 1 mM with DMSO, and then 2 μL can be drawn and added to 2 mL of saline/PBS/cell culture medium, resulting in a final concentration of 1 μM.
To avoid precipitation of the drug, it is recommended to preheat the mother liquor and culture medium to 37°C before dilution to avoid serious precipitation caused by low temperature. If precipitation occurs during the dilution process, it is suggested to use ultrasonic heating to redissolve the compound.
QWhether sonication is needed for product dissolution? What if I don't have an ultrasound machine?
Asonication can accelerate dissolution. If the compound is not dissolving, sonication is recommended. If you don't have an ultrasound machine, a lower solvent concentration or using less powder are recommended.
QHow to deal with the insoluble impurities in the product?
AInsoluble impurities, which do not affect the product activity, are recommended to filter out or remove. We will investigate to confirm whether the impurity was introduced during packaging or if it is inherent to the product itself.
QWhere can I find purity infomation for future products?
AFor futures products, no purity information or quality inspection can be available. Once the products are available, we will conduct quality inspections to determine the purity and structural information, which will be displayed on our official website.