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Bromoacetamido-PEG4-NHS ester

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Category	Small-molecule Heterobifunctional PEG
Catalog NO.	BPG-2235
Product Name	Bromoacetamido-PEG4-NHS ester
CAS	1260139-70-5
Molecular Formula	C17H27BrN2O9
Molecular Weight	483.31

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Description	Bromoacetamido-PEG4-NHS ester is a PEG derivative containing a bromide group and an NHS ester. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. Bromoacetamido-PEG4-NHS ester is a PEGn linker for antibody-drug-conjugation (ADC).
Synonyms	Bromoacetamido-PEG4-C2-NHS ester; BrCH2CONH-PEG4-NHS ester; 2,5-dioxopyrrolidin-1-yl 1-bromo-2-oxo-6,9,12,15-tetraoxa-3-azaoctadecan-18-oate; 2,5-dioxopyrrolidin-1-yl 1-(2-bromoacetamido)-3,6,9,12-tetraoxapentadecan-15-oate; 3-[2-(2-{2-[2-(2-bromo-acetylamino)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-propionic acid 2,5-dioxo-pyrrolidin-1-yl ester; 4,7,10,13-Tetraoxa-16-azaoctadecanoic acid, 18-bromo-17-oxo-, 2,5-dioxo-1-pyrrolidinyl ester; Acetamide, 2-bromo-N-[15-[(2,5-dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl]-; 2-Bromo-N-{15-[(2,5-dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl}acetamide
IUPAC Name	(2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[(2-bromoacetyl)amino]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
Canonical SMILES	C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCNC(=O)CBr
InChI	InChI=1S/C17H27BrN2O9/c18-13-14(21)19-4-6-26-8-10-28-12-11-27-9-7-25-5-3-17(24)29-20-15(22)1-2-16(20)23/h1-13H2,(H,19,21)
InChIKey	BONNYNBXMCRXBJ-UHFFFAOYSA-N
Purity	>95%
Density	1.4±0.1 g/cm3
Solubility	Soluble in DMSO
Appearance	Solid powder
Storage	Store at 2-8°C for short term (days to weeks) or -20°C for long term (months to years)

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