Hexynoic acid STP ester

Alkynes Crosslinking STP esters

Cat. #	Quantity	Price	Lead time
569-25mg	25 mg	$95	in stock
569-100mg	100 mg	$185	in stock
569-500mg	500 mg	$850	in stock

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Alkyne activated ester for the labeling of amine groups in proteins, peptides and other molecules bearing aliphatic amine functional groups.

Sulfotetrafluorophenyl (STP) esters are excellent alternatives to conventional N-hydroxysuccinimide (NHS) esters. Compared to NHS esters, STP esters provide better ratio of labeling to hydrolysis in aqueous environments.

Hexynoic acid fragment is a short linker with amine. For longer amine linkers, consider using Alkyne-PEG activated esters.

Structure of Hexynoic acid STP ester, sodium salt

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Recommended protocol

Conjugation of Alkyne- or Azide-modified Proteins with Dye Azides or Alkynes

NHS Ester Labeling of Biomolecules Containing Primary Amino Groups

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General properties

Appearance:	white solid
Mass spec M+ increment:	94.04
Molecular weight:	362.23
Molecular formula:	C₁₂H₇F₄O₅SNa
IUPAC name:	Sodium 4-(hex-5-ynoyloxy)-2,3,5,6-tetrafluorophenylsulfonate
Solubility:	good in water, DMF, DMSO
Quality control:	NMR ¹H, HPLC-MS (95%)
Storage conditions:	Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS:	Download
	Product specifications

This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.