K 114

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Cat.No. 3144 - K 114 | C22H17BrO2 | CAS No. 872201-12-2
Description: Amyloid fibril-specific fluorescent dye
Chemical Name: 4,4'-[(2-Bromo-1,4-phenylene)di-(1E)-2,1-ethenediyl]bisphenol
Purity: ≥98% (HPLC)
Datasheet
Citations
Literature

Biological Activity

Potent amyloid fibril-specific fluorescent dye (EC50 = 20 - 30 nM). Exhibits minimal fluorescence in aqueous buffers and fluoresces brightly in the presence of Aβ, α-synuclein and tau in situ. (Optimum wavelength = 550 nm).

Technical Data

M. Wt 393.27
Formula C22H17BrO2
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 872201-12-2
PubChem ID 44828481
InChI Key OXPHQQMZTXMEGO-RJTULKDBSA-N
Smiles OC(C=C3)=CC=C3/C=C/C1=CC(Br)=C(/C=C/C2=CC=C(O)C=C2)C=C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Solubility
DMSO 39.33 100
ethanol 19.66 50

Preparing Stock Solutions

The following data is based on the product molecular weight 393.27. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.54 mL 12.71 mL 25.43 mL
5 mM 0.51 mL 2.54 mL 5.09 mL
10 mM 0.25 mL 1.27 mL 2.54 mL
50 mM 0.05 mL 0.25 mL 0.51 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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Safety Datasheet

References

References are publications that support the products' biological activity.

Crystal et al (2003) A comparison of amyloid fibrillogenesis using the novel fluorescent compound K114. J.Neurochem. 86 1359 PMID: 12950445

LeVine (2005) Mechanism of Aβ(1-40) fibril-induced fluorescence of (trans-trans)-1-bromo-2,5-bis(4-hydroxystyryl)benene (K114). Biochemistry 44 15937 PMID: 16313197


If you know of a relevant reference for K 114, please let us know.

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Citations for K 114

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