15-Azido-4,7,10,13-tetraoxapentadecanoic acid CAS NO.1257063-35-6

15-Azido-4,7,10,13-tetraoxapentadecanoic acid Basic information
Product Name:    15-Azido-4,7,10,13-tetraoxapentadecanoic acid
Synonyms:    15-Azido-4,7,10,13-tetraoxapentadecanoic acid;N3-Peg(4)-cooh;3-[2-[2-[2-(2-Azidoethoxy)ethoxy]ethoxy]ethoxy]propanoic acid;N3-PEG4-CH2CH2COOH;Azido-PEG4-acid;Azido-PEG5-acid;1-Azido-3,6,9,12-tetraoxapentadecan-15-oic Acid;Azido-PEG4-propionic acid
CAS:    1257063-35-6
MF:    C11H21N3O6
MW:    291.3
EINECS:    
Product Categories:    peg
Mol File:    1257063-35-6.mol

15-Azido-4,7,10,13-tetraoxapentadecanoic acid Chemical Properties
storage temp.     -20°C
solubility     DMSO : 100 mg/mL (343.29 mM; Need ultrasonic)
form     Liquid
color     Colorless to Pale Yellow

15-Azido-4,7,10,13-tetraoxapentadecanoic acid Usage And Synthesis
Description    Azido-PEG4-acid is a very popular PEG reagent containing an azide group with a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond.
Chemical Properties    Light yellow to colorless thick liquid
Uses    Azido-PEG4-Acid is amine- or phosphine-reactive building block used to derivative primary amines for ligation to alkyne-tagged molecules.