Sphingosine-1-phosphate (S1P) functions as a versatile signaling molecule, acting both intracellularly and extracellularly. Within cells, it serves as a secondary messenger, playing a key role in calcium ion (Ca²⁺) mobilization. Externally, S1P acts as a ligand, binding to and activating a range of G protein-coupled receptors, including S1P1-5 receptors as well as GPR3, GPR6, and GPR12. This bioactive lipid is synthesized from sphingomyelin and other membrane phospholipids, highlighting its importance as a critical mediator in various cellular processes.

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.