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Azido-PEG4-t-butyl acetate

CAS No. CAS No.: 864681-04-9
Cat No. Cat No.: BPG-1976
Purity Purity: >98.0%
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Azido-PEG4-t-butyl acetate 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 azide bioorthogonal handle; requires complementary click handle on the antibody. The structure includes peg4 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 Small-molecule Group Protected PEG
Molecular Formula C14H27N3O6
Molecular Weight 333.38
Appearance Solid
Shipping Room temperature, or blue ice upon request.
Storage -20°C
Azido-PEG4-t-butyl acetate

Structure of 864681-04-9

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  • Specification
Synonyms Tert-butyl 14-azido-3,6,9,12-tetraoxatetradecanoate; Azido-PEG4-CH2CO2-t-Bu
IUPACName tert-butyl 2-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethoxy]acetate
CanonicalSMILES CC(C)(C)OC(=O)COCCOCCOCCOCCN=[N+]=[N-]
InChI InChI=1S/C14H27N3O6/c1-14(2,3)23-13(18)12-22-11-10-21-9-8-20-7-6-19-5-4-16-17-15/h4-12H2,1-3H3
InChIKey SIOLYQZSIFQODW-UHFFFAOYSA-N
Purity >98.0%
Solubility 10 mm in DMSO
ShelfLife 0-4°C for short term (days to weeks), or -20°C for long term (months).
LogP 1.15756

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