Br-PEG4-COOtBu - CAS 564476-32-0

Br-PEG4-COOtBu - CAS 564476-32-0 Catalog number: BADC-01136

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Br-PEG4-COOtBu is a PEG linker containing a bromide group and a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Category
ADCs Linker
Product Name
Br-PEG4-COOtBu
CAS
564476-32-0
Catalog Number
BADC-01136
Molecular Formula
C15H29BrO6
Molecular Weight
385.29
Br-PEG4-COOtBu

Ordering Information

Catalog Number Size Price Quantity
BADC-01136 -- $--
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Description
Br-PEG4-COOtBu is a PEG linker containing a bromide group and a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The t-butyl protected carboxyl group can be deprotected under acidic conditions.
Synonyms
Bromo-PEG4-t-butyl ester; Br-PEG4-CH2CH2COOtBu; Bromo-PEG4-C2-Boc; 15-Bromo-4,7,10,13-tetraoxapentadecanoic acid tert-butyl ester; 3,6,9,12-Tetraoxapentadecan-15-oic acid, 1-bromo-, 1,1-dimethylethyl ester; 2-Methyl-2-propanyl 1-bromo-3,6,9,12-tetraoxapentadecan-15-oate; tert-butyl 1-bromo-3,6,9,12-tetraoxapentadecan-15-oate
IUPAC Name
tert-butyl 3-[2-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]ethoxy]propanoate
Canonical SMILES
CC(C)(C)OC(=O)CCOCCOCCOCCOCCBr
InChI
InChI=1S/C15H29BrO6/c1-15(2,3)22-14(17)4-6-18-8-10-20-12-13-21-11-9-19-7-5-16/h4-13H2,1-3H3
InChIKey
WLKHUFASPMJBHB-UHFFFAOYSA-N
Density
1.210±0.06 g/cm3 (Predicted)
Solubility
Soluble in DCM, DMF, DMSO
LogP
2.17950
PSA
63.22000
Appearance
Pale Yellow or Colorless Oily Matter
Purity
≥95%
Shipping
Room temperature
Storage
Store at 2-8°C
Boiling Point
415.8±35.0°C (Predicted)
Form
Solid

Br-PEG4-COOtBu, also recognized as tert-butyl 4-(2-bromoethyl)phenyl ether, stands as a versatile reagent commonly applied in chemical and biochemical studies. Here are four key applications of Br-PEG4-COOtBu:

Protein Modification: A staple in protein modification, Br-PEG4-COOtBu finds frequent use in enhancing the solubility and stability of proteins. By conjugating the PEG4 moiety to proteins, researchers can mitigate protein aggregation and prolong protein longevity. This process plays a pivotal role in optimizing the effectiveness of therapeutic proteins and enzymes across diverse applications.

Drug Delivery: Within drug delivery methodologies, Br-PEG4-COOtBu serves as a crucial component in linking drugs to polymers or nanoparticles. The PEGylation process enhances drug pharmacokinetics and distribution, ultimately improving therapeutic efficacy. This tailored approach proves particularly advantageous in targeting specific tissues and minimizing immunogenic responses.

Bioconjugation: As a key linker in bioconjugation strategies, Br-PEG4-COOtBu facilitates the attachment of biomolecules like antibodies, peptides, and nucleic acids to various substrates. This capability plays a pivotal role in developing biosensors, diagnostic tools, and targeted therapies. The PEG4 spacer arm adds flexibility and diminishes steric hindrances, elevating the functionality of the resulting conjugates and underscoring the intricate landscape of bioconjugation chemistry.

Surface Modification: In the realm of material science, Br-PEG4-COOtBu is harnessed to tailor the surface characteristics of diverse materials, from polymers to nanoparticles and hydrogels. By integrating this reagent, surfaces can be modified to be more hydrophilic or hydrophobic based on specific application needs. This precision enables the customization of materials for specialized biomedical and industrial uses, revealing the nuanced artistry of material surface engineering.

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Historical Records: Br-PEG4-COOtBu
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