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Tos-PEG6-O-CH2COOH

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Category	Tos-PEGn-CH2COOH
Catalog NO.	BPG-3431
Product Name	Tos-PEG6-O-CH2COOH
CAS	2497486-35-6
Molecular Formula	C21H34O11S
Molecular Weight	494.55

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Description	Tos-PEG6-O-CH2COOH is a PEG linker containing a tosyl group and a terminal carboxylic acid. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media.
Synonyms	Tos-PEG7-CH2COOH; Tos-PEG6-CH2COOH; 20-(tosyloxy)-3,6,9,12,15,18-hexaoxaicosanoic acid
IUPAC Name	2-[2-[2-[2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]acetic acid
Canonical SMILES	CC1=CC=C(S(=O)(OCCOCCOCCOCCOCCOCCOCC(O)=O)=O)C=C1
InChI	InChI=1S/C21H34O11S/c1-19-2-4-20(5-3-19)33(24,25)32-17-16-30-13-12-28-9-8-26-6-7-27-10-11-29-14-15-31-18-21(22)23/h2-5H,6-18H2,1H3,(H,22,23)
InChIKey	RNURJOJBVLPCQA-UHFFFAOYSA-N
Purity	≥95%
Storage	Store at 2-8°C

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