1. Search Result
Search Result
Results for "

color+change

" in MedChemExpress (MCE) Product Catalog:

23

Inhibitors & Agonists

9

Fluorescent Dyes

7

Biochemical Assay Reagents

Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-108913
    Nitrocefin
    2 Publications Verification

    Beta-lactamase Antibiotic Bacterial Infection
    Nitrocefin is a highly activated, chromogenic cephalosporin derivative. Nitrocefin is a chromogenic β-lactamase substrate. Nitrocefin undergoes a distinctive color change from yellow to red as the amide bond in the β-lactam ring is hydrolyzed by β-lactamase. Nitrocefin is used in competitive inhibition studies in developmental work on β-lactamase-resistant antibiotics .
    Nitrocefin
  • HY-D0169
    Phenol Red
    1 Publications Verification

    Phenolsulfonephthalein

    Environmental Pollutants Fluorescent Dye Others
    Phenol red (Phenolsulfonephthalein) is a pH indicator dye, relying on a distinct color change from pink to yellow in case of a positive reaction .
    Phenol Red
  • HY-118462

    Coelenterazine 400a; Bisdeoxycoelenterazine

    Fluorescent Dye Others
    Coelenteramine 400a (Coelenterazine 400a), a derivative of Coelenterazine, is a Renilla luciferase (RLuc) substrate. In the presence of Coelenteramine 400a, RLuc can emit blue light at 395 nm . Coelenterazine 400a will causes color change in the bioluminescence reaction of Rluc by replacing the sulfur and oxygen heteroatoms of the methylene bridge. Coelenterazine 400a provides higher signal resolution and can be used in the research of bioluminescence resonance energy transfer (BRET) .
    Coelenteramine 400a
  • HY-W014449

    Biochemical Assay Reagents Others
    4-Nitrophenyl butyrate consists of butyric acid chains esterified with 4-nitrophenol groups, thus giving it a yellow color. This compound is commonly used as a substrate in enzyme assays to measure esterase and lipase activity. When these enzymes cleave the ester bond, the nitrophenol group is released and the color changes from yellow to orange. Thus, the rate of color change can be used to determine enzyme activity. In addition, 4-Nitrophenyl butyrate can also be used as organic synthesis reagent and dye intermediate.
    4-Nitrophenyl butyrate
  • HY-D1224
    Chlorophenol red-β-D-galactopyranoside
    2 Publications Verification

    CPRG

    Biochemical Assay Reagents Others
    Chlorophenol red-β-D-galactopyranoside (CPRG) is an efficient and sensitive chromogenic substrate for β-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-β-D-galactopyranoside itself appears pale yellow. When it is specifically hydrolyzed by β-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry .
    Chlorophenol red-β-D-galactopyranoside
  • HY-151644
    Fluorescein hydrazide
    1 Publications Verification

    Fluorescent Dye Others
    Fluorescein hydrazide is a sensitive fluorescent probe for Hg 2+ and Co 2+ that induces obvious color changes and fluorescence changes. Fluorescein hydrazide can be prepared by the reaction of fluorescein and hydrazine. Fluorescein hydrazide exhibits an excitation wavelength of 508 nM and an emission wavelength of 531 nM [2][3].
    Fluorescein hydrazide
  • HY-169798

    Fluorescent Dye VSV Infection
    1,9-Dimethylmethylene blue is a photosensitizer, virus inactivator and hemoglobin oxidant derived from methylene blue. When activated, 1,9-Dimethylmethylene blue generates reactive oxygen species including singlet oxygen, and acts as a metachromatic dye. When activated in monomeric or dimeric form, 1,9-Dimethylmethylene blue induces photoinactivation of R17 phage and vesicular stomatitis virus and oxidizes hemoglobin via non-singlet oxygen reactive oxygen species or singlet oxygen-mediated pathways, respectively. The monomeric form, with higher nucleic acid affinity, achieves virus inactivation under specific conditions without forming methemoglobin. 1,9-Dimethylmethylene blue binds to substances such as glycosaminoglycans to produce color changes. Although it is susceptible to interference from non-glycosaminoglycan components in urine, it is still applicable to spectrophotometric analysis for glycosaminoglycan quantification. With these unique photochemical and binding properties, 1,9-Dimethylmethylene blue is widely used in studies of viral infections and related biochemical analyses .
    1,9-Dimethylmethylene blue
  • HY-D0169A
    Phenol Red sodium salt
    1 Publications Verification

    Phenolsulfonephthalein sodium salt

    Fluorescent Dye Glutathione Peroxidase Others
    Phenol red (Phenolsulfonephthalein) sodium salt is a pH indicator dye. Phenol Red sodium salt is also an antagonist of rat P2X1R. Phenol Red sodium salt enhances the halogenating activity of myeloperoxidase. Phenol Red sodium salt shows a distinct color change from pink to yellow in a positive pH reaction .
    Phenol Red sodium salt
  • HY-W110910

    Biochemical Assay Reagents Infection
    Eriochrome black T, Indicator is a complexing agent for metal ions (e.g., Ca 2+, Mg 2+) and is used as an indicator in complexometric titrations. Eriochrome black T, Indicator forms colored complexes with metal ions through covalent coordination bonds, and indicates the endpoint of the titration by color change. Eriochrome black T, Indicator can be used as an anionic azo dye in photocatalytic degradation studies to evaluate the performance of photocatalysts. The reaction solution of Eriochrome black T, Indicator combined with Mg 2+ is initially purple. During loop-mediated isothermal amplification (LAMP), the color changes from purple to sky blue due to the consumption of Mg 2+ by the formation of magnesium pyrophosphate, indicating a positive reaction. The optimal concentration of Eriochrome black T, Indicator in LAMP is 60 μM, and the detection limit for Mycobacterium tuberculosis is 1 pg DNA/reaction .
    Eriochrome black T, Indicator
  • HY-W110794

    Environmental Pollutants Biochemical Assay Reagents Others
    Crystal violet, IND (0.0-2.0) is a specialized indicator suitable for strongly acidic systems, which reflects changes in pH within the range of 0.0-2.0 through color changes. Crystal violet, IND (0.0-2.0) is widely used in acid-base titration, chemical analysis, and industrial testing fields .
    Crystal violet, IND (0.0-2.0)
  • HY-W133919

    Environmental Pollutants Biochemical Assay Reagents Others
    Aniline Blue sodium is a water-soluble dye commonly used as a biological stain for the detection of nucleic acids and proteins in various laboratory procedures such as electrophoresis and microscopy. Aniline Blue sodium has unique chemical properties that allow it to bind to specific cellular components, producing a color change that facilitates their visualization and analysis.
    Aniline Blue sodium
  • HY-W087928

    Biochemical Assay Reagents Others
    Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations .
    Bromocresol purple
  • HY-D0812

    Fluorescent Dye Biochemical Assay Reagents Others
    Xylenol Blue is a sulfonephthalein dye. It exhibits observable color changes in response to variations in pH. Xylenol Blue undergoes two distinct color transitions across two specific pH ranges: an acidic range and an alkaline range. In a neutral solution, Xylenol Blue appears yellow (at pH 8); in a strongly acidic medium, its color shifts to red (at pH 2.8); and in an alkaline medium, the yellow hue transitions to blue (at pH 9.6) .
    Xylenol blue
  • HY-143618

    Biochemical Assay Reagents Cancer
    photoCORM-2 (compound 3) is a single carbon monoxide releasing molecule (CORM). photoCORM-2 exhibits good cellular uptake and real-time monitoring ability of CO uncaging by a color change approach. photoCORM-2 has anti-tumor activity .
    photoCORM-2
  • HY-118462A

    Coelenterazine 400a hydrochloride; Bisdeoxycoelenterazine hydrochloride

    Fluorescent Dye Others
    Coelenteramine (Coelenterazine) 400a hydrochloride, a derivative of Coelenterazine, is a Renilla luciferase (RLuc) substrate. In the presence of Coelenteramine 400a hydrochloride, RLuc can emit blue light at 395 nm . Coelenteramine 400a hydrochloride will causes color change in the bioluminescence reaction of Rluc by replacing the sulfur and oxygen heteroatoms of the methylene bridge. Coelenteramine 400a hydrochloride provides higher signal resolution and can be used in the research of bioluminescence resonance energy transfer (BRET) .
    Coelenteramine 400a hydrochloride
  • HY-W110790

    Biochemical Assay Reagents Others
    Bromocresol purple sodium is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple sodium can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations .
    Bromocresol purple sodium
  • HY-W087913

    Biochemical Assay Reagents Others
    alpha-Naphtholphthalein is an indicator that is light yellow at pH 6 and gradually shows a clear color change with increasing pH to light green-green-blue. alpha-Naphtholphthalein can be impregnated into cotton-blend fabrics and used to develop medical supplies for wound pH monitoring, such as medical gauze, hospital gowns and compression bandages .
    alpha-Naphtholphthalein
  • HY-108913R

    Beta-lactamase Reference Standards Antibiotic Infection
    Nitrocefin (Standard) is the analytical standard of Nitrocefin. This product is intended for research and analytical applications. Nitrocefin is a chromogenic β-lactamase substrate that undergoes a distinctive color change from yellow to red as the amide bond in the β-lactam ring is hydrolyzed by β-lactamase. Nitrocefin is used in competitive inhibition studies in developmental work on β-lactamase-resistant antibiotics .
    Nitrocefin (Standard)
  • HY-D1224A

    CPRG sodium

    Biochemical Assay Reagents Others
    Chlorophenol red-β-D-galactopyranoside (CPRG) sodium is an efficient and sensitive chromogenic substrate for β-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-β-D-galactopyranoside sodium itself appears pale yellow. When it is specifically hydrolyzed by β-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry .
    Chlorophenol red β-D-galactopyranoside sodium
  • HY-142955

    Biochemical Assay Reagents Cancer
    Dual photoCORM 1 (compound 5) is metal-free, photochemically active dual CORM. Dual photoCORM 1 exhibits good cellular uptake and real-time monitoring ability of CO uncaging by a color change approach in cancerous B16F10 cells .
    Dual photoCORM 1
  • HY-143617

    Photosensitizer Cancer
    photoCORM-1 (compound 8) is a combinatorial carbon monoxide releasing molecule (CORM). photoCORM-1 exhibits good cellular uptake and real-time monitoring ability of CO uncaging by a color change approach. photoCORM-1 has anti-tumor antivity .
    photoCORM-1
  • HY-D3244

    Fluorescent Dye Others
    RDDB is a rhodamine-based turn-on fluorescent and colorimetric chemosensor selective for Mn 2+, with a limit of detection of 5×10 -8 M (excitation wavelength: 480-550 nm; fluorescence signal collection range: >590 nm). In the presence of Mn 2+, RDDB undergoes a spirolactam ring-opening reaction of its rhodamine hydrazide moiety, resulting in turn-on fluorescence and a color change. RDDB can be used for intracellular Mn 2+ imaging .
    RDDB
  • HY-D3251

    Fluorescent Dye Cancer
    LCP is a fluorescent probe applicable for subcellular localization. LCP responds to polarity changes in the cellular microenvironment via fluorescence resonance energy transfer, emitting blue fluorescence in low-polarity environments and red fluorescence in high-polarity environments. LCP enables dual-color visualization of dynamic changes in lysosomes and cytoplasmic membranes during drug-induced cell apoptosis, and monitors cell viability through localization and emission color changes. LCP can be used in cancer research .
    LCP

Inquiry Online

Your information is safe with us. * Required Fields.

Salutation

 

Country or Region *

Applicant Name *

 

Organization Name *

Department *

     

Email Address *

 

Product Name *

Cat. No.

 

Requested quantity *

Phone Number *

     

Remarks

Inquiry Online

Inquiry Information

Product Name:
Cat. No.:
Quantity:
MCE Japan Authorized Agent: