Em 451-495 nm Blue

Hoechst 33342 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution.

DAPI (4',6-Diamidino-2-phenylindole) dihydrochloride is a DAPI dye. DAPI is a fluorescent dye that binds strongly to DNA. It binds to the AT base pair of the double-stranded DNA minor groove, and one DAPI molecule can occupy three base pair positions. The fluorescence intensity of DAPI molecules bound to double-stranded DNA is increased by about 20 times, and it is commonly observed with fluorescence microscopy, and the amount of DNA can be determined based on the intensity of fluorescence. DAPI cannot penetrate intact cell membranes and is commonly used for staining damaged and fixed cells. DAPI (Compound 3) is an acid-sensing ion channel 3 (ASIC3) inhibitor. DAPI binds to ASIC3 and blocks the channel function. DAPI can be used in the study of chronic pain treatment (Ex/Em = 356/451 nm).

Laurdan is a membrane-permeable fluorescent probe that displays spectral sensitivity to the phospholipid phase of the cell membrane to which it is bound. Quantitation of generalized polarization (GP) of Laurdan can be used to identify phospholipid phase (Ex/Em = 370/440-490 nm).

CellTracker Blue CMAC is a non-fluorescent cell membrane permeable dye. The chloromethyl groups of CellTracker Blue CMAC are enzymatically cleaved by intracellular glutathione (GSH) to generate a fluorescent product (blue fluorescence, Ex/Em: 360/460 nm). CellTracker Blue CMAC is suitable for long-term cell tracking (up to 72 hours) and cell proliferation studies, and can also quantify GSH levels.

Suc-Leu-Leu-Val-Tyr-AMC is a membrane-permeable calpain-specific fluorogenic substrate (Ex/Em = 390/480 nm).

ER-Tracker dye is a derivative of BODIPY series dyes coupled with Glibenclamide (HY-15206), highly selective binding to the endoplasmic reticulum, non-toxic to cells at low concentrations, this type of dye is an environmentally sensitive probe, and formaldehyde treatment can still retain part of the fluorescence, with high fluorescence life, good extinction coefficient and other characteristics. Glibenclamide is an atp-dependent K⁺ channel blocker (Kir6, KATP) and CFTR Cl-channel blocker that binds in the endoplasmic reticulum. ER-Tracker is not suitable for staining fixed cells. Staining followed by fixation is possible, but cells fixed with aldehydes will only retain partial fluorescence (Ex/Em = 374/ 430-640 nm).

Fluo-3AM (solution) is a fluorecent Ca²⁺ chelator, with high affinity for calcium. Fluo-3 AM can specifically identify intracellular calcium ions, with high sensitivity, low cytotoxicity, increased AM acetylmethyl ester can enter the cell well, after being sheared by the intracellular esterase stay in the cell to bind to calcium ions, produce strong fluorescence.
Solvent and concentration: DMSO: 5 mM

MQAE is a chloride ion (Cl^-) fluorescent probe that can be used to measure chloride concentrations. The fluorescence intensity of MQAE decreases proportionally as Cl^- ions increase. MQAE has high cell permeability and is suitable for fluorescence detection such as confocal microscopy and flow cytometry (Ex/Em=350/460 nm).

TPE-MI (Tetraphenylethene maleimide) is a thiol probe for measuring unfolded protein load and proteostasis in cells (the excitation wavelength is 350 nm and the emission wavelength is 470 nm). TPE-MI can report imbalances in proteostasis in induced pluripotent stem cell models of Huntington disease, as well as cells transfected with mutant Huntington exon 1 before the formation of visible aggregates. TPE-MI also detects protein damage following dihydroartemisinin research of the malaria parasites Plasmodium falciparum .

Monochlorobimane (Chlorobimane) is a fluorescent dye (λ_ex=380 nm, λ_em=470 nm) to measure glutathione (GSH) in cellular assays.

Methoxy-X04 is a fluorescent dye that crosses the blood-brain barrier and selectively binds to beta-pleated sheets found in dense core amyloid Aβ plaques. Methoxy-X04 retains in vitro binding affinity for amyloid b (Ab) fibrils (K_i= 26.8 nM). Methoxy-X04 is fluorescent and stains plaques, tangles, and cerebrovascular amyloid in postmortem sections of AD brain with good specificity.

Hoechst 33342 trihydrochloride is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution.

TSQ is a cytosolic zinc ion fluorescence probe that is membrane permeable and can be used for intracellular imaging of zinc proteins (λ_max ~470 nm). TSQ can combine with Zn²⁺ in the presence of Ca²⁺ and Mg²⁺ to produce blue fluorescence (Ex/Em = 334/495 nm).

Hoechst 33258 is a blue to blue-green fluorescent live cell dye that can label DNA. Hoechst 33258 can specifically bind to the minor groove of DNA (and tends to bind to A/T-rich DNA), resulting in a significant increase in fluorescence intensity. Hoechst 33258 can cross the cell membrane and cause changes in DNA structure, such as G2/M phase arrest. Hoechst 33258 can bind to live or fixed cells, and the fluorescence intensity increases with increasing solution pH. As a DNA-specific probe, Hoechst 33258 can be used to detect DNA content, analyze cell cycle, etc. The excitation wavelength of Hoechst 33258 is 350-365 nm, and the emission wavelength is 460-490 nm.

Z-Gly-Pro-AMC is a fluorogenic substrate. Z-Gly-Pro-AMC is hydrolyzed by prolyl endopeptidase to generate highly fluorescent 7-Amino-4-methylcoumarin (HY-D0027). (λ_ex=380 nm, λ_em=465 nm).

MeOSuc-AAPV-AMC is a fluorogenic substrate for human leukocyte and porcine pancreatic elastase (K_m: 362 μM, Ex=380 nm, Em=460 nm).

Z-Gly-Gly-Arg-AMC is a thrombin-specific fluorogenic substrate for testing of thrombin generation in PRP and platelet-poor plasma (PPP) (Ex/Em = 390/480 nm).

Zinquin ethyl ester is a cell-permeable and lipophilic fluorescent derivative of Zinquin (HY-D0982). Zinquin ethyl ester reacts with protein-bound Zn²⁺ in cells and forms fluorescent ternary adducts. Zinquin ethyl ester undergoes hydrolysis by intracellular esterases impeding its efflux across the plasma membrane (Ex/Em = 370/470 nm).

Ac-DEVD-AMC is a fluorescent substrate of caspase-3/caspase-7. When treating Ac-DEVD-AMC with cell lysate, Ac-DEVD-AMC releases amino-4-methylcoumarin (AMC) for fluorescence detection, with an excitation wavelength of 380 nm and an emission wavelength of 460 nm.

Z-Gly-Gly-Arg-AMC acetate is a thrombin-specific fluorogenic substrate for testing of thrombin generation in PRP and platelet-poor plasma (PPP) (Ex/Em = 390/480 nm).