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Bis-PEG12-acid

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Category	COOH-PEGn-COOH
Catalog NO.	BPG-0176
Product Name	Bis-PEG12-acid
Molecular Formula	C28H54O16
Molecular Weight	646.72

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Description	Bis-PEG12-acid is a PEG linker containing two terminal carboxylic acid groups. The terminal carboxylic acids 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	4,7,10,13,16,19,22,25,28,31,34,37-Dodecaoxatetracontane-1,40-dioic acid; HOOCCH2CH2O-PEG11-CH2CH2COOH; Di-Acid-PEG12; HOOC-PEG12-COOH; 4,7,10,13,16,19,22,25,28,31,34,37-Dodecaoxatetracontanedioic acid
IUPAC Name	3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
Canonical SMILES	C(COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O)C(=O)O
InChI	InChI=1S/C28H54O16/c29-27(30)1-3-33-5-7-35-9-11-37-13-15-39-17-19-41-21-23-43-25-26-44-24-22-42-20-18-40-16-14-38-12-10-36-8-6-34-4-2-28(31)32/h1-26H2,(H,29,30)(H,31,32)
InChIKey	BWTKNCGJGMISKP-UHFFFAOYSA-N
Boiling Point	710.9±60.0°C at 760 mmHg
Purity	≥95%
Density	1.2±0.1 g/cm3
Related CAS	51178-68-8 (polymer)
Appearance	Pale Yellow or Colorless Oily Matter
Storage	Store at 2-8°C

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