K114
Synonym(s):(trans,trans)-1-Bromo-2,5-bis-(4-hydroxy)styrylbenzene
- CAS NO.:872201-12-2
- Empirical Formula: C22H17BrO2
- Molecular Weight: 393.27
- MDL number: MFCD11045294
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-07-16 07:06:08
What is K114?
The Uses of K114
K 114 is a potent amyloid fibril-specific fluorescent dye. K 114 is a potent amyloid fibril-specific fluorescent dye similar to Congo Red and BSB. K 114 recognizes amyloid lesions and facilitates quantitative monitoring of the formation of amyloid fibrils assembled from the Aβ peptide, α-synuclein, and tau. The affinity for fibrils ranges 20-30 nM. Unlike the other compounds K114 has minimal fluorescence in aqueous buffers, but fluoresces brightly in the presence of amyloid fibrils. K114 can be used to monitor in vitro amyloid fibril formation by fluorescence emission at 550 nm.
What are the applications of Application
K 114 is a potent amyloid fibril-specific fluorescent dye
Definition
ChEBI: (E,E)-1-bromo-2,5-bis-(4-hydroxystyryl)benzene is an organobromine compound that is bromobenzene in which the hydrogens at positions 2 and 5 are replaced by 4-hydroxystyryl groups. It has a role as a fluorescent dye. It is an organobromine compound and a polyphenol.
Biological Activity
Potent amyloid fibril-specific fluorescent dye (EC 50 = 20 - 30 nM). Exhibits minimal fluorescence in aqueous buffers and fluoresces brightly in the presence of A β , α -synuclein and tau in situ . (Optimum wavelength = 550 nM).
Storage
Store at +4°C
Properties of K114
| Boiling point: | 563.0±39.0 °C(Predicted) |
| Density | 1.462±0.06 g/cm3(Predicted) |
| storage temp. | Store at +4°C |
| solubility | DMSO: soluble >10mg/mL |
| form | powder |
| pka | 9.92±0.26(Predicted) |
| color | white to beige |
Safety information for K114
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation H413:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for K114
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