Pentynoic acid STP ester

Crosslinking STP esters
Cat. # Quantity Price Lead time
30720 10 mg $110 in stock
40720 25 mg $210 in stock
50720 50 mg $410 in stock
60720 100 mg $595 10 days
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This water soluble alkyne activated ester reagent is used for the attachment of alkyne group to variois biomolecules such as proteins, and peptides. Amino-DNA, and other amines can be used as well. Since natural proteins do not contain alkynes, but almost always contain amines (lysines), this molecule is an "adaptor" to turn natural amines into alkynes.

Use this product to enable any of your proteins for click chemistry.

This is an STP (sulfotetrafluorophenyl) ester. STP esters are similar to NHS esters, but possess higher hydrophilicity, and water solubility. It works fine in pure aqueous reactions without addition of organic co-solvent, and is best suited for the modification of proteins.

Pentynoic acid STP ester, 50720
Pentynoic acid STP ester, 50720
Pentynoic acid STP ester, 50720
Sulfotetrafluorophenyl ester of pentynoic acid
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General properties

Appearance: colorless solid
Mass spec M+ increment: 80.0
Molecular weight: 348.20
CAS number: 1807530-14-8
Molecular formula: C11H5F4NaO5S
IUPAC name: 4-​Pentynoic acid, 2,​3,​5,​6-​tetrafluoro-​4-​sulfophenyl ester, sodium salt
Solubility: good in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
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Product specifications

Product citations

  1. Zanon, P.R.A.; Yu, F.; Musacchio, P.; Lewald, L.; Zollo, M.; Krauskopf, K.; Mrdović, D.; Raunft, P.; Maher, T.E.; Cigler, M.; Chang, C.; Lang, K.; Toste, F.D.; Nesvizhskii, A.I.; Hacker, S.M. Profiling the proteome-wide selectivity of diverse electrophiles. ChemRxiv, 2021, preprint. doi: 10.33774/chemrxiv-2021-w7rss-v2
  2. Abbasov, M.E.; Kavanagh, M.E.; Ichu, T.-A.; Lazear, M.R.; Tao, Y.; Crowley, V.M.; am Ende, C.W.; Hacker, S.M.; Ho, J.; Dix, M.M.; Suciu, R.; Hayward, M.M.; Kiessling, L.L.; Cravatt, B.F. A proteome-wide atlas of lysine-reactive chemistry. Nature Chemistry, 2021, 13(11), 1081–1092. doi: 10.1038/s41557-021-00765-4
  3. Antonov, S.A.; Novosadova, E.V.; Kobylansky, A.G.; Tarantul, V.Z.; Grivennikov, I.A. A Hybrid Detection Method Based on Peroxidase-mediated Signal Amplification and Click Chemistry for Highly Sensitive Background-free Immunofluorescent Staining. Journal of Histochemistry & Cytochemistry, 2019, 67(10), 771–782. doi: 10.1369/0022155419864113
  4. Jandl, B.; Sedghiniya, S.; Carstens, A.; Astakhova, K. Peptide–Fluorophore Hydrogel as a Signal Boosting Approach in Rapid Detection of Cancer DNA. ACS Omega, 2019, 4(9), 13889–13895. doi: 10.1021/acsomega.9b01586
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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.
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