Propargyl-PEG5-t-butyl ester

Name: Propargyl-PEG5-t-butyl ester
Brand: BOC Sciences
Rating: 5 (1 reviews)

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Category	Propargyl-PEGn-COOtBu
Catalog NO.	BPG-2026
Product Name	Propargyl-PEG5-t-butyl ester
CAS	1245823-50-0
Molecular Formula	C18H32O7
Molecular Weight	360.44

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Description	Propargyl-PEG5-t-butyl ester is a protected alkyne-PEG linker used in ADC linker synthesis. The t-butyl ester provides orthogonal protection for selective deprotection and coupling during antibody-drug conjugate development.
Synonyms	Propargyl-PEG5-COOtBu; Propargyl-PEG4-CH2CH2-Boc; Propargyl-PEG4-Boc; Alkyne-PEG5-CH2CH2COOtBu; Propargyl-PEG5-tert-butyl ester; tert-Butyl 4,7,10,13,16-pentaoxanonadec-18-yn-1-oate; 1,1-Dimethylethyl 4,7,10,13,16-pentaoxanonadec-18-ynoate; 4,7,10,13,16-Pentaoxanonadec-18-ynoic acid, 1,1-dimethylethyl ester; 2-Methyl-2-propanyl 4,7,10,13,16-pentaoxanonadec-18-yn-1-oate; tert-butyl 4,7,10,13,16-pentaoxanonadec-18-ynoate
IUPAC Name	tert-butyl 3-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]propanoate
SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCC#C
InChI	InChI=1S/C18H32O7/c1-5-7-20-9-11-22-13-15-24-16-14-23-12-10-21-8-6-17(19)25-18(2,3)4/h1H,6-16H2,2-4H3
InChIKey	YPLMNICQRHSVNT-UHFFFAOYSA-N
Boiling Point	420.6±40.0 °C at 760 mmHg
Flash Point	179.0±27.4 °C
Purity	≥95%
Density	1.045±0.06 g/cm3 (Predicted)
Solubility	Soluble in DMSO (10 mm)
Appearance	Pale Yellow or Colorless Oily Liquid
Shelf Life	0-4°C for short term (days to weeks), or -20°C for long term (months).
Storage	Store at 2-8°C for short term (days to weeks) or -20°C for long term (months to years)
Vapor Pressure	0.0±1.0 mmHg at 25°C
LogP	0.53

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