MKT-077 (FJ-776) is a cationic rhodacyanine dye that demonstrates antiproliferative activity against cancer cell lines (EC50s: 1.4-2.2 μM in vitro) through its ability to inhibit members of the Hsp70 family of molecular chaperones.

Methylene Blue trihydrate (Basic blue 9) is a compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene Blue trihydrate is used as a bacteriologic stain and as an indicator. It inhibits soluble guanylyl cyclase and has been used to treat cyanide poisoning and to lower levels of methemoglobin. It also inhibits tau filament formation (IC50: 1.9μM).

Indigo carmine (NSC-8646) is an indolesulfonic acid. It is used as a dye in renal function testing for the detection of nitrates and chlorates.

5(6)-Carboxyfluorescein (5-(and-6)-Carboxyfluorescein mixed isomers) contains a carboxylic acid that can be used to react with primary amines via carbodiimide activation of the carboxylic acid.

Naphthofluorescein (Naphthafluorescein) is a Mint3 inhibitor with potential antitumor and anti-inflammatory activities, inhibits the interaction between HIF-1 and Mint3, inhibits Mint3-dependent HIF-1 activity, and inhibits glycolytic activity in cancer cells and macrophages without showing significant in vitro cytotoxicity or in vivo side effects. Naphthofluorescein is also a fluorescent pH-sensitive probe for functional Cherenkov imaging.

MHI-148 is a tumor-targeting near-infrared heptamethylenecarbocyanine dye for the detection, diagnosis, and study of cancer.MHI-148 is taken up and accumulates in the lysosomes and mitochondria of tumor cells but is not taken up in the lysosomes and mitochondria of normal cells.MHI-148 is a tumor-targeting near-infrared heptamethylenecarbocyanine dye for the detection and diagnosis of cancer.

IR 783 is a heptamethine cyanine fluorescent probe for in vivo imaging of tumor cells. It displays excitation/emission maxima of 776/798 nm, respectively.

Isosulfan blue is a blue dye utilized for identifying lymph vessels during lymphangiography and sentinel lymph node biopsies in breast cancer. However, Isosulfan blue may cause allergic reactions during breast cancer operations [1] [2].

1-Stearoyl-2-arachidonoyl-sn-glycero-3-phosphorylethanolamine (SAPE) is a natural phospholipid found in mitochondrial inner membranes, involved in lipid signaling.

IR-825 is a near-infrared dye. IR-825 nanoparticles showed pH-dependent fluorescence emission and excellent near-infrared irradiation of cancer cells targeted in vitro to provide cytotoxicity. IR-825 nanoparticles showed efficient tumor homing together wi

BQ7876 is a probe that targets prostate-specific membrane antigen (PSMA) and contains a DOTA chelator. After radiolabeling with radionuclides (177Lu), BQ7876 specifically binds to PSMA, serving both in radionuclide imaging and tumor cell destruction. It shows potential for research in the field of metastatic castration-resistant prostate cancer (mCRPC). BQ7876 can also be utilized in the synthesis/research of radionuclide conjugated drugs (RDC).

D-Ala-Lys-AMCA TFA is a known substrate of proton-coupled oligopeptide transporter 1 (PEPT1) that emits blue fluorescence. D-Ala-Lys-AMCA TFA may be transported into Caco-2 cells and liver cancer cells.

HMRG is a hydroxymethyl rhodamine green fluorescent scaffold featuring an open non-spirocyclic structure. At physiological pH, HMRG undergoes a one-step enzymatic reaction resulting in significant dynamic fluorescence changes, making it suitable for developing various probes. Fluorescent probes based on HMRG can be utilized for detecting diseases such as cancer and diabetic nephropathy.

HPI is an HS-fluorescent probe (Ex/Em=280/410 nm) that can be utilized to detect the HS- form of hydrogen sulfide (H2S) gas in environmental water samples [1].

S0456, a near-infrared (NIR) fluorescent dye, binds to the folate receptor (FR) and is utilized in the synthesis of Pafolacianine. It serves as a tumor-specific optical imaging agent with an excitation wavelength of 788 nM and an emission wavelength of 800 nM [1].

RTSPSSR is a synthesized peptide that specifically binds to claudin-1 and visualizes CRC tumors in mice through near-infrared fluorescence imaging [1].

Fluoromisonidazole, a Radiation-Sensitizing Agent, can be used for imaging tumor hypoxia: imaging the microenvironment for personalized cancer therapy.

PNE-Lyso is an activatable fluorescent probe capable of detecting intracellular pH and hexosaminidases via dual fluorescence signals. It distinguishes apoptosis from necrosis by visualizing lysosomal morphology and facilitates the investigation of agent-induced cell death processes [1].

BIBD-300 is a high-affinity PARP-1 imaging agent capable of accurately localizing C6 and U87MG tumors, making it suitable for research in diagnosing breast cancer, prostate cancer, glioma, and liver cancer [1].

Pegulicianine acetate (LUM015) serves as a potent fluorescent imaging agent for detecting cancer tissue.

Naphthol AS-TR phosphate disodium is a water-soluble chromogenic dye widely employed as an enzymatic substrate for detecting alkaline phosphatase activity, as it undergoes enzymatic hydrolysis to yield a measurable colored product, enabling sensitive spectrophotometric monitoring of enzyme activity in biological samples such as serum or urine for diagnostic and biochemical assay applications.

2-Hydroxy nile red trifluoromethanesulfonate is a fluorescent probe that can be incorporated into oligonucleotides as a nucleotide substitute. It serves as a DNA probe to detect polarity changes in the tumor microenvironment.

SW116 free base is a selective fluorescent ligand for the sigma-2 receptor (sigma-2 receptor), with a Ki of 14 nM. It exhibits a maximum excitation wavelength of 333 nM and a maximum emission wavelength of 506 nM in methanol. SW116 free base can internalize into MDA-MB-435 cells, reaching 50% of its maximum fluorescence intensity within 24 minutes. This compound serves as a fluorescent probe in cancer research.

Imatinib Acid is usually used as a fluorescent probe or labeled chemical.