m-PEG13-COOH

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Category	m-PEGn-acid
Catalog NO.	BPG-0509
Product Name	m-PEG13-COOH
CAS	2170098-33-4
Molecular Formula	C28H56O15
Molecular Weight	632.74

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Description	m-PEG13-COOH is a PEG linker containing a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media.
Synonyms	mPEG12-propionic acid; m-PEG13-acid; mPEG12-CH2CH2COOH; 2,5,8,11,14,17,20,23,26,29,32,35,38-tridecaoxahentetracontan-41-oic acid; mPEG12-OCH2CH2COOH; 4,7,10,13,16,19,22,25,28,31,34,37,40-Tridecaoxahentetracontanoic acid
IUPAC Name	3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
Canonical SMILES	COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O
InChI	InChI=1S/C28H56O15/c1-31-4-5-33-8-9-35-12-13-37-16-17-39-20-21-41-24-25-43-27-26-42-23-22-40-19-18-38-15-14-36-11-10-34-7-6-32-3-2-28(29)30/h2-27H2,1H3,(H,29,30)
InChIKey	RQQVDBLIIIQXET-UHFFFAOYSA-N
Boiling Point	657.4±55.0°C at 760 mmHg
Purity	≥95%
Density	1.113±0.1 g/cm3
Solubility	Soluble in DMSO
Appearance	Pale Yellow or Colorless Oily Liquid
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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