C2 Ceramide

As indicated on product label or CoA when stored as recommended. Stable for at least 1 year after receipt when stored, as supplied, at -20°C. Stock solutions are stable for up to 3 months at -20°C.

C2 ceramide may precipitate from aqueous media, particularly those lacking serum or serum albumin, at concentrations ~20μM or higher. To avoid this problem, a 1:1 complex of C2 Ceramide with BSA may be prepared as follows: Dissolve C2 ceramide to 200mM (68.3mg/ml) in anhydrous DMSO. Dissolve fatty acid-free BSA in water to 66mg/ml (1mM) . Dilute the ceramide/DMSO stock 200-fold into the BSA solution, with constant stirring. A precipitate will form at first, but will dissolve after ~30 minutes of stirring at room temperature. Alternatively, a solution of C2 Ceramide/BSA may be prepared directly, without making a DMSO stock: 1) prepare a 20% w/v stock of BSA in water (3mM) ; 2) use the BSA stock to dissolve the solid C2 Ceramide at 1.02mg/ml (3mM) . Complete dissolution of the ceramide may require more than 1 hour of stirring at room temperature.