Carboxy-PEG4-sulfonic acid

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Category	Acid-PEGn-sulfonic acid
Catalog NO.	BPG-0063
Product Name	Carboxy-PEG4-sulfonic acid
CAS	1817735-25-3
Molecular Formula	C11H22O9S
Molecular Weight	330.35

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Description	Carboxy-PEG4-sulfonic acid is a PEG linker containing a carboxylic acid and a sulfonic acid end group. The terminal carboxylic acid can participate in reactions with primary amines in the presence of activators such as EDC and HATU. Sulfonic acid can undergo esterification, halogenation and replacement reactions. The hydrophilic PEG linker increases the compound's water solubility in aqueous media.
Synonyms	1-Sulfo-3,6,9,12-tetraoxapentadecan-15-oic acid; 3,6,9,12-Tetraoxapentadecan-15-oic acid, 1-sulfo-
IUPAC Name	3-[2-[2-[2-(2-sulfoethoxy)ethoxy]ethoxy]ethoxy]propanoic acid
Canonical SMILES	C(COCCOCCOCCOCCS(=O)(=O)O)C(=O)O
InChI	InChI=1S/C11H22O9S/c12-11(13)1-2-17-3-4-18-5-6-19-7-8-20-9-10-21(14,15)16/h1-10H2,(H,12,13)(H,14,15,16)
InChIKey	AIQWRGDWHOOSMN-UHFFFAOYSA-N
Purity	≥95%
Density	1.3±0.1 g/cm3
Solubility	Soluble in DMSO, Water
Appearance	Colorless Oily Matter
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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