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Hydroxy-PEG1-t-butyl ester

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Category	Small-molecule Group Protected PEG
Catalog NO.	BPG-1733
Product Name	Hydroxy-PEG1-t-butyl ester
CAS	671802-00-9
Molecular Formula	C9H18O4
Molecular Weight	190.24

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Description	Hydroxy-PEG1-t-butyl ester is a PEG linker containing a hydroxyl group and a t-butyl ester. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl-protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.
Synonyms	Hydroxy-PEG1-(CH2)2-Boc; HO-PEG1-CH2CH2COOtBu; HO-PEG1-t-butyl ester; Propanoic acid, 3-(2-hydroxyethoxy)-, 1,1-dimethylethyl ester; OH-PEG1-TBA; OH-PEG1-CH2CH2COOtBu; 2-Methyl-2-propanyl 3-(2-hydroxyethoxy)propanoate; 3-(2-Hydroxyethoxy)propanoic acid tert-butyl ester
IUPAC Name	tert-butyl 3-(2-hydroxyethoxy)propanoate
Canonical SMILES	CC(C)(C)OC(=O)CCOCCO
InChI	InChI=1S/C9H18O4/c1-9(2,3)13-8(11)4-6-12-7-5-10/h10H,4-7H2,1-3H3
InChIKey	ACWLDITVZGWIKA-UHFFFAOYSA-N
Boiling Point	274.0±15.0 °C at 760 mmHg
Purity	>98%
Density	1.031±0.06 g/cm3 (Predicted)
Solubility	Soluble in DMSO, Water
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	190.12050905
LogP	0.72710
Pictogram(s)	Irritant
Signal	Warning
Precautionary Statement Codes	P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

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