Protease Substrate

HMRef-αMan is a substrate-based green fluorescent probe (Ex/Em=465 nm/515 nm) targeting MAN2C1 (α-mannosidase). HMRef-αMan can be specifically cleaved by MAN2C1 to generate a highly fluorescent product, which thus gets activated to produce green fluorescence in malignant breast tissues, benign lesions and living cancer cells. The signal intensity of HMRef-αMan is directly correlated with MAN2C1 activity, and it can effectively detect tiny breast cancer lesions with a diameter of less than 1 mm. When used in combination with the red-emitting γ-glutamyl transpeptidase (GGT) probe gGlu-2OMe SiR600 (HY-D3188), HMRef-αMan enables precise optical differentiation of breast tissue types via a dual-color imaging strategy. HMRef-αMan has been widely used in the research of breast diseases such as breast cancer, fibroadenoma, phyllodes tumor and various types of papilloma.

Pinkment-OAc is an AND logic gate-based dual-analyte-dependent fluorescence inducer (Ex/Em = 545 nm/590 nm) that can be used for the simultaneous detection of hydrogen peroxide (H₂O₂) and esterases (e.g., porcine liver esterase PLE). Pinkment-OAc triggers a fluorescent response only when both esterase and hydrogen peroxide are present.

DR probe is a "dual-key-and-lock" fluorescent probe designed based on the Resorufin (HY-123533) scaffold (Ex/Em = 647 nm/663-738 nm). DR probe can be sequentially activated by hydrogen peroxide to form the intermediate SR, which acts as a tyrosinase substrate to trigger a fluorescence turn-on signal. DR probe can distinguish normal melanocytes from melanoma cells. DR probe supports cell imaging and can be applied to mouse melanoma models to achieve melanoma diagnosis with higher accuracy and lower false-positive rates. DR probe is applicable to relevant research on melanoma.

AlDeSense AM is a cell-permeable ALDH1A1-selective fluorescent reporter. AlDeSense AM is oxidized by ALDH1A1, which eliminates photoinduced electron transfer quenching and enhances the fluorescent signal. AlDeSense AM can be used to detect cells with cancer stem cell properties, as well as to monitor the plasticity of cancer stem cells in cell culture systems and animal models. AlDeSense AM is applicable to the study of cancers associated with cancer stem cells, including chronic myeloid leukemia, melanoma, and breast cancer.

LGP-CL is a chemiluminescent probe. LGP-CL can be used to evaluate elevated protease levels in both in vitro and in vivo systems, and to distinguish hepatocellular carcinoma cells from normal cells and other cancer cell lines. LGP-CL is applicable to liver cancer-related research.

MB-m-borate is a double-locked near-infrared fluorescence-activated probe (Ex/Em ≈ 647 nm/684 nm). MB-m-borate undergoes cascade activation by hydrogen peroxide and tyrosinase to release the fluorophore methylene blue, thereby generating a fluorescence activation response. MB-m-borate enables precise detection of melanoma in melanoma cells and mouse models. MB-m-borate can be used for melanoma research.

gGlu-2OMe SiR600 is a γ-glutamyl transpeptidase (GGT) responsive fluorescent probe. gGlu-2OMe SiR600 can be converted into a highly fluorescent molecule via reaction with GGT, and its initial fluorescence is quenched through a photoinduced electron transfer (PeT) mechanism. gGlu-2OMe SiR600 exhibits fluorescence activation in malignant breast cancer and benign breast fibroadenoma tissues, enabling lesion visualization. gGlu-2OMe SiR600 can be used for research related to breast cancer and fibroadenoma.

C-HBrO-GGT is a dual-target fluorescent indicator with specificity for γ-glutamyl transpeptidase (GGT) and hypobromous acid (HBrO). C-HBrO-GGT acts as a substrate for GGT and HBrO, undergoing enzymatic or chemical modification to trigger channel-specific fluorescence, with sequential activation requiring initial GGT hydrolysis. C-HBrO-GGT enables simultaneous in vitro and in vivo fluorescence detection of GGT and HBrO. C-HBrO-GGT identifies mature atherosclerotic plaque positions and provides early warning of plaque formation before visual or classical immunofluorescent detection. C-HBrO-GGT can be used for the research of atherosclerosis (Ex/Em = 370 nm/500 nm).

DCM-gal-CF is a fluorescent probe containing a DCM fluorophore scaffold and a D-galactose recognition moiety. DCM-gal-CF itself shows weak fluorescence, and its fluorescence is enhanced after cleavage by β-galactosidase. DCM-gal-CF can be used to detect β-galactosidase activity.

CEMT is a carboxylesterase (CES) substrate and a ratiometric two-photon fluorescent reporter probe. CEMT can be hydrolyzed by CES to generate HMT, which is used for mitochondrial pH sensing. After activation by CES, CEMT exhibits ratiometric fluorescence changes in response to pH variations. CEMT targets and covalently binds to mitochondria, and can avoid leakage during acidification, thus enabling in situ imaging (Ex/Em = 410 nm/550 nm).

IETDC is a caspase 8-responsive fluorescent probe. IETDC is cleaved by activated caspase 8 to release D-cysteine, which then reacts with 6-hydroxy-2-cyanobenzothiazole (HCBT) ​​to form firefly luciferin in situ. IETDC must be used in conjunction with PCL-2 (HY-D3168) to detect the co-existence of hydrogen peroxide and caspase 8. IETDC is applicable to studies related to acute inflammation.

Dansylcadaverine (solution) (Monodansyl cadaverine (solution)) is an autofluorescent compound used for the labeling of autophagic vacuoles. Dansylcadaverine, a high affinity substrate of transglutaminases, can block the receptor-mediated endocytosis of many ligands.
Solvent and concentration: DMSO: 10 mM

BTP9-Neu5Ac is a fluorescent imaging probe specifically designed for detecting the neuraminidase (NA) sialidase activity of influenza viruses. BTP9-Neu5Ac can visualize the intracellular Golgi localization of the viral NA activity. BTP9-Neu5Ac can be used for precise and temporal monitoring of the key enzyme activities during the viral life cycle.

KSA01 is a two-dimensional fluorescent probe. KSA01 can detect SA-β-gal activity and sense lysosomal pH. KSA01 can accurately distinguish cellular aging from other pathological states with high expression of β-gal.

KSA02 is a two-dimensional intelligent fluorescent probe. KSA02 not only detects the activity of the aging-related β-galactosidase (SA-β-gal), but also can simultaneously sense the pH value changes of the lysosomal microenvironment where SA-β-gal is located. KSA02 can distinguish between aging and cancer, track the aging process, and evaluate the efficacy of anti-aging agents. KSA02 can be used for the study of aging biology.

N-Decanoyl p-nitroaniline (DepNA) is one of several nitroaniline fatty acid amides which can be used to measure fatty acid amide hydrolase (FAAH) activity.1 FAAH is a relatively unselective enzyme in that it accepts a variety of amide head groups other than the ethanolamine of its endogenous substrate anandamide (AEA). It also will hydrolyze fatty acid amides with fewer carbons and fewer double bonds than arachidonate. Exposure of DepNA to FAAH activity results in the release of the yellow colorimetric dye p-nitroaniline (ε=13,500 at 410 nm). This allows the fast and convenient measurement of FAAH activity using a 96 well plate spectrophotometer.