Bis-PEG4-NHS ester

Name: Bis-PEG4-NHS ester
Brand: BOC Sciences
Rating: 5 (1 reviews)

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Category	Bis-PEGn-NHS ester
Catalog NO.	BPG-3567
Product Name	Bis-PEG4-NHS ester
CAS	1314378-11-4
Molecular Formula	C20H28N2O12
Molecular Weight	488.45

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Description	Bis-PEG4-NHS ester is a homobifunctional PEG linker offering two NHS ester sites for amine conjugation. The PEG4 spacer is optimal for ADC applications requiring enhanced solubility and flexibility in drug-antibody linkage.
Synonyms	Bis(2,5-dioxopyrrolidin-1-yl) 4,7,10,13-tetraoxahexadecane-1,16-dioate; NHS-PEG4-NHS; Bis(2,5-dioxopyrrolidin-1-yl) 4,7,10,13-tetraoxahexadecanedioate; 4,7,10,13-Tetraoxahexadecanedioic acid, 1,16-bis(2,5-dioxo-1-pyrrolidinyl) ester; 1,1'-[(1,16-Dioxo-4,7,10,13-tetraoxahexadecane-1,16-diyl)bis(oxy)]di(2,5-pyrrolidinedione); 2,5-Pyrrolidinedione, 1,1'-[(1,16-dioxo-4,7,10,13-tetraoxahexadecane-1,16-diyl)bis(oxy)]bis-; α,ω-disuccinimidyl triethylene glycol; Di-NHS Ester-PEG4
IUPAC Name	(2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethoxy]propanoate
SMILES	C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCC(=O)ON2C(=O)CCC2=O
InChI	InChI=1S/C20H28N2O12/c23-15-1-2-16(24)21(15)33-19(27)5-7-29-9-11-31-13-14-32-12-10-30-8-6-20(28)34-22-17(25)3-4-18(22)26/h1-14H2
InChIKey	BQLKLYYHZOLCLV-UHFFFAOYSA-N
Boiling Point	605.1±65.0°C at 760 mmHg
Purity	≥98%
Density	1.4±0.1 g/cm3
Solubility	Soluble in DCM, DMSO
Related CAS	123502-57-8 (polymer)
Appearance	Pale Yellow or Colorless Oily Matter
Storage	Store at 2-8°C

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