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Hydroxy-PEG3-t-butyl ester

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Category	Small-molecule Group Protected PEG
Catalog NO.	BPG-1877
Product Name	Hydroxy-PEG3-t-butyl ester
CAS	186020-66-6
Molecular Formula	C13H26O6
Molecular Weight	278.34

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Description	Hydroxy-PEG3-(CH2)2-Boc is a uncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs).
Synonyms	HO-PEG3-CH2CH2COOtBu; Hydroxy-PEG3-(CH2)2-Boc; OH-PEG3-TBA; OH-PEG3-CH2CH2COOtBu; HO-PEG3-t-butyl ester; tert-Butyl 12-hydroxy-4,7,10-trioxadodecanoate; 3-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]propionic acid tert-butyl ester; 12-Hydroxy-4,7,10-trioxadodecanoic Acid tert-Butyl Ester; 2-Methyl-2-propanyl 3-{2-[2-(2-hydroxyethoxy)ethoxy]ethoxy}propanoate; Propanoic acid, 3-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]-, 1,1-dimethylethyl ester; tert-Butyl triethylene glycol-O-propionate
IUPAC Name	tert-butyl 3-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]propanoate
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCO
InChI	InChI=1S/C13H26O6/c1-13(2,3)19-12(15)4-6-16-8-10-18-11-9-17-7-5-14/h14H,4-11H2,1-3H3
InChIKey	KSXVEOLRERRELV-UHFFFAOYSA-N
Boiling Point	365.8±27.0°C (Predicted)
Flash Point	125.2°C
Purity	≥95%
Density	1.052 g/mL at 20°C
Solubility	Soluble in DMSO (10 mm)
Related CAS	1186025-29-5 (polymer) 892154-71-1 (polymer)
Appearance	Colorless to light yellow to light orange clear liquid
Storage	Store at 2-8°C
Exact Mass	278.17293854
Vapor Pressure	7.78E-07mmHg at 25°C
LogP	0.76030
Pictogram(s)	Irritant
Signal	Warning
Precautionary Statement Codes	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

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