| Category | Azido-PEGn-NHS ester |
| Molecular Formula | C13H20N4O7 |
| Molecular Weight | 344.32 |
| Appearance | Pale Yellow or Colorless Oily Matter |
| Shipping | Room temperature |
| Storage | Store at 2-8°C |
Azido-PEG3-NHS ester
Azido-PEG3-NHS ester is a PEG-containing bioorthogonal conjugation building block that provides an azide handle for modular click-chemistry workflows. The molecule can be used to introduce a click-reactive group onto an antibody, peptide, linker intermediate, or payload-containing component, depending on the chemistry of its second terminal functionality. Its additional reactive group is nhs/succinimidyl ester (amine-reactive) for antibody lysines/primary amines. The structure includes peg3 spacer to provide hydrophilic spacing. Conjugation can be performed using spaac with dbco/bcn-functionalized partner or cuaac with terminal alkyne partner, depending the complementary handle. The sequence and orientation of the coupling steps should be selected according to the functional groups carried by the two conjugation partners.
Structure of 1245718-89-1
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- Specification
| Synonyms | Azido-PEG3-CH2CO2-NHS; N3-PEG3-C2-NHS ester; N3-PEG3-CH2CH2COONHS Ester; 1-[(3-{2-[2-(2-Azidoethoxy)ethoxy]ethoxy}propanoyl)oxy]-2,5-pyrrolidinedione; 2,5-Pyrrolidinedione, 1-[3-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]-1-oxopropoxy]-; N3-PEG3-SPA; Propanoic acid, 3-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]-, 2,5-dioxo-1-pyrrolidinyl ester |
| IUPACName | (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]propanoate |
| CanonicalSMILES | C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCN=[N+]=[N-] |
| InChI | InChI=1S/C13H20N4O7/c14-16-15-4-6-22-8-10-23-9-7-21-5-3-13(20)24-17-11(18)1-2-12(17)19/h1-10H2 |
| InChIKey | BNLXVOZUEBSSRI-UHFFFAOYSA-N |
| Purity | ≥98% |
| Solubility | Soluble in DCM, DMF, DMSO, Water |
| RelatedCAS | 1108750-59-9 (polymer) |
| ShelfLife | ≥12 months if stored properly |
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