[4-(Diethoxy-phosphorylamino)-butyl]-phosphoramidic acid diethyl ester is a hydrophilic PEG derivative. Phosphonic acid ethyl ester is used for surface modification. The hydrophilic PEG linker can increase the solubility of a compound in aqueous media and improve the hydrophilicity of the surfaces.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
![[4-(Diethoxy-phosphorylamino)-butyl]-phosphoramidic acid diethyl ester](https://e1752fbe.rocketcdn.me/wp-content/uploads/AP11821.png)
![[2-(Diethoxy-phosphorylamino)-ethyl]-phosphoramidic acid diethyl ester](https://e1752fbe.rocketcdn.me/wp-content/uploads/AP11820.png)
![[6-(Diethoxy-phosphorylamino)-hexyl]-phosphoramidic acid diethyl ester](https://e1752fbe.rocketcdn.me/wp-content/uploads/AP11822.png)