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Category Tos-PEGn-CH2COOH
Catalog NO. BPG-3429
Product Name Tos-PEG7-O-CH2COOH
CAS 2408334-70-1
Molecular Formula C23H38O12S
Molecular Weight 538.61
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Product Information

Description Tos-PEG7-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-PEG8-CH2COOH; Tos-PEG7-CH2COOH; 23-(tosyloxy)-3,6,9,12,15,18,21-heptaoxatricosanoic acid
IUPAC Name 2-[2-[2-[2-[2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]acetic acid
InChI InChI=1S/C23H38O12S/c1-21-2-4-22(5-3-21)36(26,27)35-19-18-33-15-14-31-11-10-29-7-6-28-8-9-30-12-13-32-16-17-34-20-23(24)25/h2-5H,6-20H2,1H3,(H,24,25)
Purity ≥95%
Storage Store at 2-8°C


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