COOH-PEG9-COOtBu

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Category	COOH-PEGn-COOtBu
Catalog NO.	BPG-1562
Product Name	COOH-PEG9-COOtBu
Molecular Formula	C26H50O13
Molecular Weight	570.67

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Description	COOH-PEG9-COOtBu is a PEG linker containing a t-butyl-protected carboxyl group and 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 t-butyl-protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.
Synonyms	Acid-PEG9-t-butyl ester; Acid-PEG9-C2-Boc; HOOCCH2CH2O-PEG8-CH2CH2COOtBu; COOH-PEG9-OtBu; 2,2-Dimethyl-4-oxo-3,7,10,13,16,19,22,25,28,31-decaoxatetratriacontan-34-oic acid; 4,7,10,13,16,19,22,25,28-Nonaoxahentriacontane-1,31-dioic acid, mono(1,1-dimethylethyl) ester
IUPAC Name	3-[2-[2-[2-[2-[2-[2-[2-[2-[3-[(2-methylpropan-2-yl)oxy]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O
InChI	InChI=1S/C26H50O13/c1-26(2,3)39-25(29)5-7-31-9-11-33-13-15-35-17-19-37-21-23-38-22-20-36-18-16-34-14-12-32-10-8-30-6-4-24(27)28/h4-23H2,1-3H3,(H,27,28)
InChIKey	PFVZSRZLXIYZBF-UHFFFAOYSA-N
Boiling Point	622.0±55.0°C at 760 mmHg
Purity	≥95%
Density	1.1±0.1 g/cm3
Appearance	Pale Yellow or Colorless Oily Matter
Storage	Store at 2-8°C

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