Br-PEG7-COOtBu

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Category	Br-PEGn-COOtBu
Catalog NO.	BPG-1380
Product Name	Br-PEG7-COOtBu
Molecular Formula	C21H41BrO9
Molecular Weight	517.45

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Description	Br-PEG7-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-PEG7-t-butyl ester; Br-PEG7-CH2CH2COOtBu; Bromo-PEG7-C2-Boc; tert-butyl 1-bromo-3,6,9,12,15,18,21-heptaoxatetracosan-24-oate; 2-Methyl-2-propanyl 1-bromo-3,6,9,12,15,18,21-heptaoxatetracosan-24-oate; 3,6,9,12,15,18,21-Heptaoxatetracosan-24-oic acid, 1-bromo-, 1,1-dimethylethyl ester
IUPAC Name	tert-butyl 3-[2-[2-[2-[2-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCBr
InChI	InChI=1S/C21H41BrO9/c1-21(2,3)31-20(23)4-6-24-8-10-26-12-14-28-16-18-30-19-17-29-15-13-27-11-9-25-7-5-22/h4-19H2,1-3H3
InChIKey	CUQOSQMVDLWZAR-UHFFFAOYSA-N
Boiling Point	524.2±45.0°C at 760 mmHg
Purity	≥95%
Density	1.2±0.1 g/cm3
Appearance	Pale Yellow or Colorless Oily Matter
Storage	Store at 2-8°C

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