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colorimetric indicator

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Biochemical Assay Reagents (2) Environmental Pollutants (1) Fluorescent Dye (4)
By Research Areas:	Cancer (1) Metabolic Disease (1)

Inhibitors & Agonists

Fluorescent Dyes

Biochemical Assay Reagents

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-W129633

2,6-Dichlorophenolindophenol sodium hydrate 1 Publications Verification DCIP sodium hydrate; DPIP sodium hydrate	Biochemical Assay Reagents	Others
2,6-Dichlorophenolindophenol (DCIP; DPIP) sodium hydrate is a redox chromogenic indicator with a redox potential of +217 mV relative to SHE, and it acts as a substrate for reduction reactions. During the metabolic process of nutrient consumption by Saccharomyces cerevisiae, 2,6-Dichlorophenolindophenol sodium hydrate is reduced from dark blue to colorless, resulting in a decrease in absorbance. 2,6-Dichlorophenolindophenol sodium hydrate is widely used in spectrophotometric biochemical oxygen demand determination and preclinical colorimetric toxicity analysis for heavy metal ion detection based on Saccharomyces cerevisiae .

HY-Y0699

Methyl red	Environmental Pollutants Fluorescent Dye	Others
Methyl red is a pH-sensitive acid-base indicator and colorimetric reagent with a pKa of 5.1. Methyl red achieves visual judgment of the titration endpoint through reversible structural changes of protonation (red, pH <4.4) and deprotonation (yellow, pH >6.2). Methyl red is widely used in acid-base titration in chemical analysis and buffer pH monitoring in biochemistry .

HY-D0202

Arsenazo III	Fluorescent Dye	Others
Arsenazo III is an azo derivative of chromotropic acid, a metal chrome dye, a chelating agent, and a cation complexing agent. Arsenazo III forms stable 1:1 complexes with Ca ²⁺, Mg ²⁺, Sr ²⁺, Ba ²⁺, K ⁺, and Na ⁺, and its binding affinity for Ca ²⁺ depends on pH, alkali metal cation concentration, and buffer parameters. Arsenazo III serves as a colorimetric indicator for micromolar ionized Ca ²⁺ in cells .

HY-W110793

Dithizone Diphenylthiocarbazone	Biochemical Assay Reagents	Metabolic Disease
Dithizone can be toxic to pancreatic islet cells and cause experimental diabetes. Dithizone can be used for in vitro in vivo staining of transplanted islets and cytoplasmic granules of bone marrow cells. Dithizone can be used as a chelating agent and colorimetric indicator for the detection and extraction of various heavy metals, including lead and mercury, in analytical and biochemical applications. Dithizone forms stable colored complexes with metal ions and can be quantitatively analyzed by methods such as spectrophotometry .

HY-W142631

4-(Phenylazo)diphenylamine	Fluorescent Dye	Cancer
4-(Phenylazo)diphenylamine is an excellent colorimetric indicator for the accurate determination of the concentration for a variety of strong bases, Lewis acids, and hydride reducing agents .

HY-D3152

NRh-Cu	Fluorescent Dye	Others
NRh-Cu is a highly sensitive near-infrared fluorescence turn-on indicator and Cu ²⁺-selective probe (λ_ex=680 nm, λ_em=740 nm). When NRh-Cu interacts with Cu ²⁺, it undergoes a structural transition from a non-fluorescent spirocyclic state to a fluorescent ring-opened state, which drives the enhancement of fluorescence emission. NRh-Cu can be used for Cu ²⁺ imaging in live cells and in vivo .

Cat. No.	Product Name	Type

HY-D0202

Arsenazo III	Fluorescent Dyes
Arsenazo III is an azo derivative of chromotropic acid, a metal chrome dye, a chelating agent, and a cation complexing agent. Arsenazo III forms stable 1:1 complexes with Ca ²⁺, Mg ²⁺, Sr ²⁺, Ba ²⁺, K ⁺, and Na ⁺, and its binding affinity for Ca ²⁺ depends on pH, alkali metal cation concentration, and buffer parameters. Arsenazo III serves as a colorimetric indicator for micromolar ionized Ca ²⁺ in cells .

Arsenazo III

Fluorescent Dyes

Arsenazo III is an azo derivative of chromotropic acid, a metal chrome dye, a chelating agent, and a cation complexing agent. Arsenazo III forms stable 1:1 complexes with Ca ²⁺, Mg ²⁺, Sr ²⁺, Ba ²⁺, K ⁺, and Na ⁺, and its binding affinity for Ca ²⁺ depends on pH, alkali metal cation concentration, and buffer parameters. Arsenazo III serves as a colorimetric indicator for micromolar ionized Ca ²⁺ in cells .

HY-W142631

4-(Phenylazo)diphenylamine	Fluorescent Dyes
4-(Phenylazo)diphenylamine is an excellent colorimetric indicator for the accurate determination of the concentration for a variety of strong bases, Lewis acids, and hydride reducing agents .

HY-D3152

NRh-Cu	Fluorescent Dyes
NRh-Cu is a highly sensitive near-infrared fluorescence turn-on indicator and Cu ²⁺-selective probe (λ_ex=680 nm, λ_em=740 nm). When NRh-Cu interacts with Cu ²⁺, it undergoes a structural transition from a non-fluorescent spirocyclic state to a fluorescent ring-opened state, which drives the enhancement of fluorescence emission. NRh-Cu can be used for Cu ²⁺ imaging in live cells and in vivo .

NRh-Cu

Fluorescent Dyes

NRh-Cu is a highly sensitive near-infrared fluorescence turn-on indicator and Cu ²⁺-selective probe (λ_ex=680 nm, λ_em=740 nm). When NRh-Cu interacts with Cu ²⁺, it undergoes a structural transition from a non-fluorescent spirocyclic state to a fluorescent ring-opened state, which drives the enhancement of fluorescence emission. NRh-Cu can be used for Cu ²⁺ imaging in live cells and in vivo .

Cat. No.	Product Name	Type

HY-W129633

2,6-Dichlorophenolindophenol sodium hydrate 1 Publications Verification DCIP sodium hydrate; DPIP sodium hydrate	Biochemical Assay Reagents
2,6-Dichlorophenolindophenol (DCIP; DPIP) sodium hydrate is a redox chromogenic indicator with a redox potential of +217 mV relative to SHE, and it acts as a substrate for reduction reactions. During the metabolic process of nutrient consumption by Saccharomyces cerevisiae, 2,6-Dichlorophenolindophenol sodium hydrate is reduced from dark blue to colorless, resulting in a decrease in absorbance. 2,6-Dichlorophenolindophenol sodium hydrate is widely used in spectrophotometric biochemical oxygen demand determination and preclinical colorimetric toxicity analysis for heavy metal ion detection based on Saccharomyces cerevisiae .

2,6-Dichlorophenolindophenol sodium hydrate

1 Publications Verification

DCIP sodium hydrate; DPIP sodium hydrate

Biochemical Assay Reagents

2,6-Dichlorophenolindophenol (DCIP; DPIP) sodium hydrate is a redox chromogenic indicator with a redox potential of +217 mV relative to SHE, and it acts as a substrate for reduction reactions. During the metabolic process of nutrient consumption by Saccharomyces cerevisiae, 2,6-Dichlorophenolindophenol sodium hydrate is reduced from dark blue to colorless, resulting in a decrease in absorbance. 2,6-Dichlorophenolindophenol sodium hydrate is widely used in spectrophotometric biochemical oxygen demand determination and preclinical colorimetric toxicity analysis for heavy metal ion detection based on Saccharomyces cerevisiae .

HY-Y0699

Methyl red	Biochemical Assay Reagents
Methyl red is a pH-sensitive acid-base indicator and colorimetric reagent with a pKa of 5.1. Methyl red achieves visual judgment of the titration endpoint through reversible structural changes of protonation (red, pH <4.4) and deprotonation (yellow, pH >6.2). Methyl red is widely used in acid-base titration in chemical analysis and buffer pH monitoring in biochemistry .

HY-W110793

Dithizone Diphenylthiocarbazone	Biochemical Assay Reagents
Dithizone can be toxic to pancreatic islet cells and cause experimental diabetes. Dithizone can be used for in vitro in vivo staining of transplanted islets and cytoplasmic granules of bone marrow cells. Dithizone can be used as a chelating agent and colorimetric indicator for the detection and extraction of various heavy metals, including lead and mercury, in analytical and biochemical applications. Dithizone forms stable colored complexes with metal ions and can be quantitatively analyzed by methods such as spectrophotometry .

Dithizone

Diphenylthiocarbazone

Biochemical Assay Reagents

Dithizone can be toxic to pancreatic islet cells and cause experimental diabetes. Dithizone can be used for in vitro in vivo staining of transplanted islets and cytoplasmic granules of bone marrow cells. Dithizone can be used as a chelating agent and colorimetric indicator for the detection and extraction of various heavy metals, including lead and mercury, in analytical and biochemical applications. Dithizone forms stable colored complexes with metal ions and can be quantitatively analyzed by methods such as spectrophotometry .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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