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AQC (6-Aminoquinolyl-N-hydroxysccinimidyl carbamate) is a reagent used in HPLC for the fluorescence detection of amino acid or protein sequences. It reacts with primary and secondary amino acids to produce fluorescent derivatives, enabling the detection of amino acids at picomolar levels.

5-Phenyl-4E-pentenol is a product of PPHP reduction catalyzed by peroxidases. It can be rapidly separated using solid-phase extraction and quantified through isocratic reverse-phase high-performance liquid chromatography (HPLC) coupled with UV detection. As a fluorescent dye, 5-Phenyl-4E-pentenol is used to determine the kinetic properties of both heme and non-heme peroxidases and to evaluate the capability of oxidative compounds as substrates for peroxidase reduction.

Anisoin (4,4'-Dimethoxybenzoin) is a fluorescent labeling reagent used in the chromatographic analysis of guanidine compounds in liquid chromatography [Ex/Em = 325/435 nm].

Bis-ANS dipotassium, as a type of protein fluorescent probe, can specifically bind to tubulin with a dissociation constant (Kd) of 2 μM [1]. Meanwhile, Bis-ANS dipotassium is also an efficient biphasic regulator of protein liquid-liquid phase separation (LLPS), exerting a significant concentration-dependent regulatory effect: it promotes liquid-liquid phase separation at low concentrations while exerting an inhibitory effect at high concentrations [2].

7-Methoxycoumarin-4-acetic acid (MCA) is a coumarin-derived fluorescent dye for peptide labelling. MCA enables quantitative detection of platelet-activating factor (PAF) via high-performance liquid chromatography fluorescence detection (Ex/Em=330/390 nm).