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Tos-PEG2-acid

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Category	Tos-PEGn-acid
Catalog NO.	BPG-3451
Product Name	Tos-PEG2-acid
CAS	2111895-60-2
Molecular Formula	C12H16O6S
Molecular Weight	288.31

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Description	Tos-PEG2-acid contains a tosyl group and a terminal carboxylic acid. Tosyl group is a very good leaving group for nucleophilic substitution reaction. Terminal carboxylic acid is easy to react with primary and secondary amines and form stable amide bonds in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond. The hydrophilic PEG spacer increases the solubility in aqueous media.
Synonyms	3-(2-(tosyloxy)ethoxy)propanoic acid; Tos-PEG2-COOH
IUPAC Name	3-[2-(4-methylphenyl)sulfonyloxyethoxy]propanoic acid
Canonical SMILES	CC1=CC=C(C=C1)S(=O)(=O)OCCOCCC(=O)O
InChI	InChI=1S/C12H16O6S/c1-10-2-4-11(5-3-10)19(15,16)18-9-8-17-7-6-12(13)14/h2-5H,6-9H2,1H3,(H,13,14)
InChIKey	OHCFWABZSDYCKI-UHFFFAOYSA-N
Purity	≥95%
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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