2. Fluorescent Dye
  3. Histological Staining

Histological Staining

Histochemical dyes are colorimetric or fluorescent reagents used to stain specific components of cells and the extracellular matrix in tissue sections. This category includes traditional stains (e.g., hematoxylin-eosin, Oil Red) as well as fluorescently labeled probes. Based on electrostatic interactions or covalent binding, these dyes enable differential labeling of nuclei, cytoplasm and extracellular matrix, revealing tissue microenvironment features and cellular morphology. They are widely applied in pathological tissue analysis and tumor classification.The fluorescent stain solutions are easy to use with minimized reagent loss, while ensuring experimental reproducibility.

Histological Staining (22):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-DY1056
    Texas Red (solution) 60311-02-6
    Texas Red (Sulforhodamine 101) (solution) is an amphoteric rhodamine red fluorescent dye (excitation/emission: 586/605 nm). Texas Red is used extensively for investigating neuronal morphology and acts as acell type-selective fluorescent marker of astrocytes bothin vivoand in slice preparations.
    Solution Concentration: 10 mM
    Texas Red (solution)
  • HY-DY2002
    X-GAL (solution) 7240-90-6
    X-GAL (BCIG) (solution) is a widely used chromogenic β-galactosidase substrate. X-GAL is a colorless compound until cleaved by β-galactosidase, at which point X-GAL turns to an insoluble and detectable blue compound, making X-GAL particularly useful in techniques such as blue-white screening for cloning in bacteria. X-GAL can also be used for detection of β-galactosidase activity.
    Solution Concentration: 20 mg/mL
    X-GAL (solution)
  • HY-DY2013
    Modified Masson’s Trichrome Staining Kit
    Modified Masson’s Trichrome Staining Kit can be used for collagen fiber staining, distinguishing between collagen fibers and muscle fibers. Modified Masson’s Trichrome Staining Kit differs from the regular Masson’s Trichrome Staining Kit (HY-DY2012) in that it uses azurite blue hematoxylin to lightly stain cell nuclei. Its characteristics include a shorter differentiation time (1-2 min), clearer and brighter colors, and a wider range of applications, suitable for staining paraffin sections and frozen sections of tissues.
    Modified Masson’s Trichrome Staining Kit
  • HY-DY3002
    Glutaraldehyde Fixative (4%, For Electron Microscopy)
    Glutaraldehyde Fixative (4%, For Electron Microscopy) is composed of glutaraldehyde, phosphate, deionized water, etc., with a pH range of 7.2-7.4. This fixative is effective in fixing fine structures of cell nuclei and cytoplasm and is commonly used for fixing electron microscopy specimens.
    Glutaraldehyde Fixative (4%, For Electron Microscopy)
  • HY-DY2006
    Alcian Blue Staining Kit (pH2.5)
    Alcian Blue Staining Kit (pH 2.5) is a copper-titanium cyanine conjugated cationic dye that can bind to acidic groups, i.e., form insoluble complexes with anionic groups such as carboxyl groups contained in tissues.
    Alcian Blue Staining Kit (pH2.5)
  • HY-DY2009
    Alcian Blue-Periodic Acid-Schiff (AB-PAS) Staining Kit
    Alcian Blue-Periodic Acid-Schiff (AB-PAS) Staining Kit can be used for staining mucinous substances or mucins, distinguishing between acidic mucins, neutral mucins, and mixed mucinous substances. Its core components are Alcian Blue staining solution and Schiff Reagent. It is primarily used for staining mucinous substances, turning glycogen, neutral mucins, and various glycoproteins purple-red, while other substances appear blue.
    Alcian Blue-Periodic Acid-Schiff (AB-PAS) Staining Kit
  • HY-DY2012
    Masson’s Trichrome Staining Kit
    Masson’s Trichrome Staining Kit is a classic collagen fiber staining method that can distinguish between collagen fibers and muscle fibers. It has a wide range of applications and is suitable for staining paraffin sections and frozen sections of tissues.
    Masson’s Trichrome Staining Kit
  • HY-DY2016
    Weigert’s Elastic Fiber Staining Kit
    Weigert’s Elastic Fiber Staining Kit can be used to stain elastic fibers. Its staining principle lies in the formation of a Lake complex between resorcinol fuchsin and iron ions. The free amino groups of this complex are firmly bonded to the hydrogen bonds within the elastic fibers, resulting in a black color.
    Weigert’s Elastic Fiber Staining Kit
  • HY-DY2001
    Crystal Violet (solution) 548-62-9
    Crystal Violet (solution), also known as Gentian violet, methyl violet 10B, is a triphenyl-methane, an alkaline dye that binds to DNA in the nucleus of a cell, staining it a deep purple. It is often used for Gram staining to classify bacteria, or for cell or histological staining.
    Solution Concentration: 5 mg/mL (0.5%)
    Crystal Violet (solution)
  • HY-DY2011
    Modified Safranine O-Fast Green Cartilage Staining Kit
    Modified Safranine O-Fast Green Cartilage Staining Kit can be used for cartilage staining. Its staining principle lies in the fact that basophilic cartilage binds to the basic dye Safranine O, turning red, while eosinophilic bone binds to the acidic dye Fast Green, turning green or blue. This contrasts sharply with the red cartilage, thus distinguishing cartilage tissue from bone tissue.
    Modified Safranine O-Fast Green Cartilage Staining Kit
  • HY-DY2015
    Modified Van Gieson Staining Kit
    Modified Van Gieson Staining Kit can be used for staining collagen fibers, commonly used to differentiate between collagen fibers and muscle fibers.
    Modified Van Gieson Staining Kit
  • HY-DY2018
    Oil Red O Staining Kit (For Slides)
    Oil Red O is a fat-soluble diazol dye, with a maximum absorption at 518 nm. Oil Red O stains neutral lipids and cholesteryl esters but not biological membranes. Oil Red O Staining Kit (For Cultured Cell) can be used for staining cell smears, bone marrow smears, body fluid smears, blood smears, etc.
    Oil Red O Staining Kit (For Slides)
  • HY-DY2010
    Periodic Acid-Silver Methenamine Staining Kit for Basement Membrane
    Periodic Acid-Silver Methenamine Staining Kit for Basement Membrane can be used for staining basement membrane mucopolysaccharides. Its staining principle is that after tissue is oxidized by iodic acid, the mucopolysaccharides within the basement membrane expose aldehyde groups. These aldehyde groups reduce hexamine silver to black metallic silver, and gold chloride transforms the metallic silver into a more stable form of gold.
    Periodic Acid-Silver Methenamine Staining Kit for Basement Membrane
  • HY-DY2014
    Picro-Sirius Red Staining Kit
    Picro-Sirius Red Staining Kit, composed of hematoxylin and Sirius red staining solutions, can be used for staining collagen fibers. When used in immunohistochemical studies, Picro-Sirius Red Staining Kit can also visualize type I and type III collagen fibers.
    Picro-Sirius Red Staining Kit
  • HY-DY2017
    Oil Red O Staining Kit (For Cultured Cell)
    Oil Red O is a fat-soluble diazol dye, with a maximum absorption at 518 nm. Oil Red O stains neutral lipids and cholesteryl esters but not biological membranes. Oil Red O Staining Kit (For Cultured Cell) is a staining solution specifically designed for cultured cells.
    Oil Red O Staining Kit (For Cultured Cell)
  • HY-DY3004
    Frozen Section Embedding Medium
    Frozen Section Embedding Medium (OCT) is a water-soluble mixture of polyethylene glycol and polyvinyl alcohol, widely used in immunohistochemistry experiments. Frozen Section Embedding Medium (OCT) supports tissue during frozen sectioning, increasing tissue continuity and reducing wrinkling and fragmentation.
    Frozen Section Embedding Medium
  • HY-DY1049
    Thioflavin T (solution) 2390-54-7
    Thioflavin T (solution) is a cationic Benzothiazole dye that shows enhanced fluorescence upon binding to amyloid in tissue sections. Excitation max.: ~385 nm (free); ~450 nm (bound); Emission max.: ~445 nm (free); ~485 nm (bound).
    Solution Concentration: 10 mM
    Thioflavin T (solution)
  • HY-DY2007
    Alcian Blue Staining Kit (pH1.0)
    Alcian Blue Staining Kit (pH 1.0) is a copper-titanium cyanine conjugated cationic dye that can bind to acidic groups, i.e., form insoluble complexes with anionic groups such as sulfate groups (OSO3H) contained in tissues.
    Alcian Blue Staining Kit (pH1.0)
  • HY-DY3001
    Glutaraldehyde Fixative (2.5%, For Electron Microscopy)
    Glutaraldehyde Fixative (2.5%, For Electron Microscopy) is composed of glutaraldehyde, phosphate, deionized water, etc., with a pH range of 7.2-7.4. This fixative is effective in fixing fine structures of cell nuclei and cytoplasm and is commonly used for fixing electron microscopy specimens.
    Glutaraldehyde Fixative (2.5%, For Electron Microscopy)
  • HY-DY2005
    Hematoxylin and Eosin (H&E) Staining Kit (with Differentiation and Bluing Reagents)
    Hematoxylin and Eosin (H&E) Staining Kit (with Differentiation and Bluing Reagents) can be used for staining paraffin sections, frozen sections, and tissue cells. After hematoxylin-eosin combined staining, the cytoplasm appears red or pink, and the cell nucleus appears blue or bluish-purple.
    Hematoxylin and Eosin (H&E) Staining Kit (with Differentiation and Bluing Reagents)