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Hydroxy-PEG12-t-butyl ester

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Category	Small-molecule Group Protected PEG
Catalog NO.	BPG-2468
Product Name	Hydroxy-PEG12-t-butyl ester
CAS	2388521-20-6
Molecular Formula	C31H62O15
Molecular Weight	674.81

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Description	Hydroxy-PEG12-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	HO-PEG12-CH2CH2COOtBu; Hydroxy-PEG12-(CH2)2-Boc; OH-PEG12-TBA; OH-PEG12-CH2CH2COOtBu; HO-PEG12-t-butyl ester; tert-Butyl 1-Hydroxy-3,6,9,12,15,18,21,24,27,30,33,36-dodecaoxanonatriacontan-39-oate; O-(2-tert-Butyloxycarbonylethyl)dodecaethylene glycol; 2-Methyl-2-propanyl 1-hydroxy-3,6,9,12,15,18,21,24,27,30,33,36-dodecaoxanonatriacontan-39-oate; 3,6,9,12,15,18,21,24,27,30,33,36-Dodecaoxanonatriacontan-39-oic acid, 1-hydroxy-, 1,1-dimethylethyl ester; 4,7,10,13,16,19,22,25,28,31,34,37-Dodecaoxanonatriacontanoic acid, 39-hydroxy-, 1,1-dimethylethyl ester; 1,1-Dimethylethyl 39-hydroxy-4,7,10,13,16,19,22,25,28,31,34,37-dodecaoxanonatriacontanoate
IUPAC Name	tert-butyl 3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO
InChI	InChI=1S/C31H62O15/c1-31(2,3)46-30(33)4-6-34-8-10-36-12-14-38-16-18-40-20-22-42-24-26-44-28-29-45-27-25-43-23-21-41-19-17-39-15-13-37-11-9-35-7-5-32/h32H,4-29H2,1-3H3
InChIKey	UOOVFHUCPREVAH-UHFFFAOYSA-N
Boiling Point	669.5±50.0 °C at 760 mmHg
Purity	>97%
Density	1.092±0.06 g/cm3
Related CAS	1186025-29-5 (polymer) 892154-71-1 (polymer)
Appearance	Colorless Liquid
Storage	Store at 2-8°C
LogP	0.72710

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