2. Search Result
Search Result
Results for "

color change

" in MedChemExpress (MCE) Product Catalog:

62

Inhibitors & Agonists

43

Fluorescent Dyes

11

Biochemical Assay Reagents

1

MCE Kits

1

Natural
Products

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
    Coelenteramine 400a

    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-D0018
    DCIP sodium
    1 Publications Verification

    Dichlorophenylindophenol sodium; DCPIP sodium; Indochlorophenol sodium

    		 Biochemical Assay Reagents Others
    DCIP sodium is a blue dye commonly used in various biochemical and biotechnological applications as an indicator of redox reactions. DCIP sodium has unique chemical properties that change color according to the oxidation state of the substance being tested. It is commonly used in enzyme assays, such as measuring the activity of succinate dehydrogenase, or in protein quantification methods, such as the Lowry assay.
    DCIP sodium
  • HY-W014449
    4-Nitrophenyl butyrate

    		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-W110798
    Bromophenol blue indicator (3.0-4.6)
    1 Publications Verification

    		 Environmental Pollutants Biochemical Assay Reagents Others
    Bromophenol blue indicator (3.0-4.6) is a synthetic dye commonly used as an acid-base indicator with a transition range of pH 3.0-4.6. Bromophenol blue indicator (3.0-4.6) is water soluble and changes color from yellow to blue as the pH of the solution changes from acidic to basic. Its unique chemical properties make it an important ingredient in a variety of scientific applications, especially in biochemistry and molecular biology. In addition, it can be used as a stain in microbiology and histology. However, Bromophenol blue indicator (3.0-4.6) has potential irritating and staining properties.
    Bromophenol blue indicator (3.0-4.6)
  • 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
    1,9-Dimethylmethylene blue

    		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-W110794
    Crystal violet, IND (0.0-2.0)

    		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-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
    Eriochrome black T, Indicator

    		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-W133919
    Aniline Blue sodium

    		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
    Bromocresol purple

    		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-D1137
    C.I. Pigment yellow 110

    		Fluorescent Dye
    C.I. Pigment yellow 110 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment yellow 110
  • HY-128369
    Acid Yellow 36

    Metanil Yellow

    		 Environmental Pollutants Cytochrome P450 Others
    Acid Yellow 36 (Metanil Yellow) is an azo dye and a pH indicator. Acid Yellow 36 changes its color from red at pH 1.2 to yellow at pH 2.3. Acid Yellow 36 is used in the leather, paper and textile industries. Acid Yellow 36 acts as a bifunctional inducer of specific isozymes of P-450 and cytosolic enzymes .
    Acid Yellow 36
  • HY-D0429
    C.I. Pigment red 5

    		Fluorescent Dye
    C.I. Pigment red 5 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 5
  • HY-D0812
    Xylenol blue

    		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-128545
    Nitrazine yellow

    Nitrazine paper; Phenaphthazine

    		 Biochemical Assay Reagents Others
    Nitrazine yellow (Nitrazine paper; Phenaphthazine) is a pH indicator. The color of Nitrazine yellow changes from yellow to blue in the pH range from 6.0 to 7.0. Nitrazine yellow is a kind of biological materials or organic compounds that are widely used in life science research .
    Nitrazine yellow
  • HY-D0228
    4-(4-Nitrophenylazo)resorcinol

    Azo Violet; Magneson I

    		 Fluorescent Dye Others
    4-(4-Nitrophenylazo)resorcinol (Azo Violet) is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used .
    4-(4-Nitrophenylazo)resorcinol
  • HY-D0531
    C.I. Pigment red 123

    		Fluorescent Dye
    C.I. Pigment red 123 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 123
  • HY-D0960
    C.I. Solvent Blue 43

    		Fluorescent Dye
    C.I. Solvent Blue 43 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Solvent Blue 43
  • HY-N8502
    Urdamycin A

    		Fluorescent Dye Cancer
    Urdamycin A (Compound 3b) is an angucycline antibiotic that can be isolated from Streptomyces fradiae. Urdamycin A is an orange indicator with a change of the color to ultramarine blue at pH 7.7. Urdamycin A has anticancer activity with IC50s of 2.4 and 0.55 μg/mL in proliferation and stem cell assays, respectively .
    Urdamycin A
  • HY-143618
    photoCORM-2

    		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-D0405
    C.I. Pigment yellow 74

    		Fluorescent Dye
    C.I. Pigment yellow 74 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment yellow 74
  • HY-D0457
    C.I. Solvent red 179

    		Fluorescent Dye
    C.I. Solvent red 179 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Solvent red 179
  • HY-118462A
    Coelenteramine 400a hydrochloride

    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-D0488
    C.I. Pigment orange 36

    		Fluorescent Dye
    C.I. Pigment orange 36 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment orange 36
  • HY-D0686
    C.I. Pigment red 221

    		Fluorescent Dye
    C.I. Pigment red 221 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 221
  • HY-D0450
    C.I. Pigment red 112

    		Fluorescent Dye
    C.I. Pigment red 112 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 112
  • HY-D0486
    C.I. Pigment violet 32

    		Fluorescent Dye
    C.I. Pigment violet 32 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment violet 32
  • HY-D0442
    C.I. Pigment red 14

    		Fluorescent Dye
    C.I. Pigment red 14 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 14
  • HY-D0510
    C.I. Pigment orange 34

    		Fluorescent Dye
    C.I. Pigment orange 34 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment orange 34
  • HY-D0725
    C.I. Pigment yellow 180

    		Fluorescent Dye
    C.I. Pigment yellow 180 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment yellow 180
  • HY-D0445
    C.I. Pigment orange 16

    		Fluorescent Dye
    C.I. Pigment orange 16 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment orange 16
  • HY-D0489
    C.I. Pigment orange 38

    		Fluorescent Dye
    C.I. Pigment orange 38 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment orange 38
  • HY-D0459
    C.I. Pigment brown 25

    		Fluorescent Dye
    C.I. Pigment brown 25 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment brown 25
  • HY-D0426
    C.I. Pigment red 8

    		Fluorescent Dye
    C.I. Pigment red 8 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 8
  • HY-D0428
    C.I. Pigment red 9

    		Fluorescent Dye
    C.I. Pigment red 9 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 9
  • HY-D0460
    C.I. Pigment red 48

    Pigment red 48 calcium salt

    		 Fluorescent Dye
    C.I. Pigment red 48 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 48
  • HY-D0394
    C.I. Pigment red 2

    		Fluorescent Dye
    C.I. Pigment red 2 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 2
  • HY-D0519
    C.I. Pigment red 52:1

    		Fluorescent Dye
    C.I. Pigment red 52:1 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 52:1
  • HY-W110789
    Ethyl Orange sodium, indicator grade

    		Biochemical Assay Reagents Others
    Ethyl Orange (sodium), indicator grade is an organic azo compound that can be used as a pH indicator from pH 3.0 to pH 4.8, changing color from red to orange.
    Ethyl Orange sodium, indicator grade
  • HY-W110790
    Bromocresol purple sodium

    		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
    alpha-Naphtholphthalein

    		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-124324
    4-Nitrophenyl β-D-cellotrioside

    p-Nitopheyl β-D-cellotioside

    		 Fluorescent Dye Others
    4-Nitrophenyl β-D-cellotrioside (p-Nitopheyl β-D-cellotioside) is a chromogenic substrate for endoglucanases and cellulose biohydrolases. As a fluorescent dye, nitrophenyl β-D-Cellotrioside can be hydrolyzed by enzymes to release 4-nitrophenol, producing a yellow color. The activity of the enzyme can be quantitatively analyzed by monitoring the change in absorbance at 405 nm .
    4-Nitrophenyl β-D-cellotrioside
  • HY-108913R
    Nitrocefin (Standard)

    		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
    Chlorophenol red β-D-galactopyranoside sodium

    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-143617
    photoCORM-1

    		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-D0493
    C.I. Pigment yellow 62

    		Fluorescent Dye
    C.I. Pigment yellow 62 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment yellow 62

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: