CPL302-253 is a potent, selective inhibitor of PI3Kδ with IC50 of 12.2 nM and Kd of 0.83 nM, >350-fold selectivity over PI3K isoforms α, β, and γ (IC50>4,500 nM); CPL302-253 displays no off-target interaction in KinomeScan assays. CLP302-253 blocks activation of primary lymphoid cells in vitro, blocks IL-33 cytokine production in epithelial and T cell co-cultures. CLP302-253 bocks eosinophil infiltration to the lungs and IL-33 expression in HDM induced asthma mouse model.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.