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Hydroxy-PEG2-t-butyl ester

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Category	Small-molecule Group Protected PEG
Catalog NO.	BPG-1805
Product Name	Hydroxy-PEG2-t-butyl ester
CAS	133803-81-3
Molecular Formula	C11H22O5
Molecular Weight	234.29

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Description	Hydroxy-PEG2-(CH2)2-Boc is a uncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Hydroxy-PEG2-(CH2)2-Boc is extracted from patent WO2004008101A2 (compound 196).
Synonyms	HO-PEG2-CH2CH2COOtBu; Hydroxy-PEG2-(CH2)2-Boc; OH-PEG2-TBA; OH-PEG2-CH2CH2COOtBu; HO-PEG2-t-butyl ester; Propanoic acid, 3-[2-(2-hydroxyethoxy)ethoxy]-, 1,1-dimethylethyl ester; t-Butyl 9-hydroxy-4,7-dioxanonanoate; 3-[2-(2-hydroxyethoxy)ethoxy]propionic acid t-butyl ester; 2-Methyl-2-propanyl 3-[2-(2-hydroxyethoxy)ethoxy]propanoate
IUPAC Name	tert-butyl 3-[2-(2-hydroxyethoxy)ethoxy]propanoate
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCO
InChI	InChI=1S/C11H22O5/c1-11(2,3)16-10(13)4-6-14-8-9-15-7-5-12/h12H,4-9H2,1-3H3
InChIKey	OKOWESVURLUVMD-UHFFFAOYSA-N
Boiling Point	321.8±22.0 °C at 760 mmHg
Purity	≥95%
Density	1.046±0.1 g/cm3
Solubility	Soluble in DMSO (10 mm)
Related CAS	1186025-29-5 (polymer) 892154-71-1 (polymer)
Appearance	Pale Yellow or Colorless Oily Liquid
Storage	Store at 2-8°C
Exact Mass	234.1467238
LogP	0.74370

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