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COOH-PEG7-COOtBu

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Category	COOH-PEGn-COOtBu
Catalog NO.	BPG-1566
Product Name	COOH-PEG7-COOtBu
CAS	2134235-86-0
Molecular Formula	C22H42O11
Molecular Weight	482.57

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Description	COOH-PEG7-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-PEG7-t-butyl ester; Acid-PEG7-C2-Boc; HOOCCH2CH2O-PEG6-CH2CH2COOtBu; COOH-PEG7-OtBu; 2,2-Dimethyl-4-oxo-3,7,10,13,16,19,22,25-octaoxaoctacosan-28-oic acid; 4,7,10,13,16,19,22-Heptaoxapentacosanedioic acid, 1-(1,1-dimethylethyl) ester; 4,7,10,13,16,19,22-Heptaoxapentacosane-1,25-dioic acid, mono(1,1-dimethylethyl) ester
IUPAC Name	3-[2-[2-[2-[2-[2-[2-[3-[(2-methylpropan-2-yl)oxy]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCC(=O)O
InChI	InChI=1S/C22H42O11/c1-22(2,3)33-21(25)5-7-27-9-11-29-13-15-31-17-19-32-18-16-30-14-12-28-10-8-26-6-4-20(23)24/h4-19H2,1-3H3,(H,23,24)
InChIKey	ZKTHNZIIGGRJGA-UHFFFAOYSA-N
Boiling Point	561.1±50.0°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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