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Azido-PEG3-NHS ester

CAS No. CAS No.: 1245718-89-1
Cat No. Cat No.: BPG-3556
Purity Purity: ≥98%
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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.

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

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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