Sphingosine (d17:1) (C17 Sphingosine) is a 17-carbon sphingolipid found in human skin that can be phosphorylated by sphingomyelin kinase.Sphingosine C-17 can be used as an internal standard to perform spectroscopic analysis of sphingolipids.

1-Methylpyrrolidine is extensively used in the synthesis of pyrrolidine based ionic liquids.

Bisphenoxyethanolfluorene a high stability of the new type of organic chemical raw materials, mainly used for synthesis of heat resistance, excellent transparency and high refractive index of polymer monomer.