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proton transfer

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By Targets:	Biochemical Assay Reagents (2) Drug Intermediate (1) Endogenous Metabolite (5) Environmental Pollutants (1) Fluorescent Dye (5) Isotope-Labeled Compounds (1) Mitochondrial Metabolism (1) Reference Standards (1)
By Research Areas:	Infection (1)

Inhibitors & Agonists

Fluorescent Dye

Biochemical Assay Reagents

Natural
Products

Isotope-Labeled Compounds

Targets Recommended: Proton Pump

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-Y1309

1-Naphthol Furro ER; NSC 9586; Nako TRB	Environmental Pollutants Endogenous Metabolite	Others
1-naphthol (Furro ER) is an excited state proton transfer (ESPT) fluorescent molecular probe. 1-naphthol can sense the hydrophobic domains in micellar aggregation and accurately sense the sol-gel transition. 1-naphthol can be used to study the thermally induced microenvironmental changes and hydration levels of Pluronic F127 (PF127) in different microenvironments in aqueous media .

HY-D0077

2',7'-Difluorofluorescein Oregon green 488	Fluorescent Dye	Others
2',7'-Difluorofluorescein (Oregon green 488) is a fluorescein derivative and a pH-sensitive fluorescent probe (pK_a ~4.7). Upon excitation at 488 nm, 2',7'-Difluorofluorescein exhibits pH-sensitive fluorescence intensity through the formation of dianions, while its pH sensitivity decreases under excitation at 450 nm, allowing its use in ratiometric pH analysis. 2',7'-Difluorofluorescein can be used for the quantitative analysis of pH values in the range of 2-7 in submicron aerosol particles. 2',7'-Difluorofluorescein undergoes buffer-mediated and buffer-free excited-state proton transfer between different protonated forms, and its cationic form undergoes rapid excited-state deprotonation. 2',7'-Difluorofluorescein is resistant to photodegradation, maintains stable absorption and fluorescence properties within the physiological pH range, and serves as a fluorescent protein label, a component of Ca ²⁺ indicators, a fluorescent imaging agent, and an anisotropy probe .

HY-W140203

2-(2′-Hydroxyphenyl)benzimidazole	Fluorescent Dye	Others
2-(2′-Hydroxyphenyl) benzimidazole is the most extensively studied excited-state intramolecular proton transfer (ESIPT) molecule, exhibiting normal and tautomer emissions. 2-(2′-Hydroxyphenyl) benzimidazole has been applied as a fluorescent probe in various systems .

HY-I0259

8-Amino-2-naphthol	Fluorescent Dye	Others
8-Amino-2-naphthol is a photoactive charge transfer compounds, which can be used as fluorescent probe. 8-Amino-2-naphthol undergoes excited-state proton transfer (ESPT) to form a zwitterion under acidic conditions, where the photoacidity of its hydroxyl group is regulated by the protonation state of the amino group, enabling pH to act as an on/off switch for photoacidity. 8-Amino-2-naphthol is also utilized as chiral organocatalyst .

HY-W001584

6-Aminoindole	Biochemical Assay Reagents	Others
6-Aminoindole is an electron donor. A novel proton transfer hydrogen-bonded complex is formed between 6-aminoindole and Picric acid .

HY-W012232

2,6-Diphenylpyridine	Biochemical Assay Reagents Drug Intermediate	Others
2,6-Diphenylpyridine is a proton acceptor (log(P) = 5) and a tridentate [C^N^C] dianionic ligand. 2,6-Diphenylpyridine efficiently transfers protons through a direct pathway at the interface of two immiscible electrolyte solutions. 2,6-Diphenylpyridine as a tridentate ligand and can form mononuclear and binuclear complexes with gold(III). 2,6-Diphenylpyridin is applicable to research in electrochemical ion transfer kinetics and organometallic chemistry .

HY-N16571

Marionol	Fluorescent Dye Endogenous Metabolite	Others
Marionol is a type of flavonol compound and belongs to the secondary metabolites of plants. Marionol exhibits significant specificity towards Cu²⁺ and possesses the characteristic of intramolecular proton transfer in excited state (ESIPT), enabling it to generate strong fluorescence upon excitation by ultraviolet light. The maximum excitation/emission wavelengths are 350 nm and 510 nm (depending on the solvent), respectively. Marionol can be used as a fluorescence probe for Cu²⁺ .

HY-157933

SF-C5-TPP	Mitochondrial Metabolism	Infection
SF-C5-TPP is an potent mitochondria-targeted protonophoric uncoupler. SF-C5-TPP has significant proton transfer activity on model planar bilayer lipid membranes. SF-C5-TPP inhibits the growth of Bacillus subtilis with a MIC of 2 μM ^>[1].

HY-Y1309R

1-Naphthol (Standard) Furro ER (Standard); NSC 9586 (Standard); Nako TRB (Standard)	Reference Standards Endogenous Metabolite	Others
1-Naphthol (Standard) is the analytical standard of 1-Naphthol. This product is intended for research and analytical applications. 1-naphthol is an excited state proton transfer (ESPT) fluorescent molecular probe.

HY-D2286

HBT-Fl-BnB	Fluorescent Dye	Others
HBT-Fl-BnB is a fluorescent probe for the ratiometric detection of ONOO ^- in vitro and in vivo. HBT-Fl-BnB consists of an HBT core with Fl groups at the ortho and para positions responding to the zwitterionic excited-state intramolecular proton-transfer (zwitterionic ESIPT) process and a boronic acid pinacol ester with dual roles that block the zwitterionic ESIPT and recognize ONOO ^- .

HY-Y1309S1

1-Naphthol-d7 Furro ER-d₇; NSC 9586-d₇; Nako TRB-d₇	Isotope-Labeled Compounds Endogenous Metabolite	Others
1-Naphthol-d₇ (Furro ER-d₇) is the deuterium labeled Naphthol (HY-Y1309). 1-Naphthol (Furro ER) is an excited state proton transfer (ESPT) fluorescent molecular probe. 1-naphthol can sense the hydrophobic domains in micellar aggregation and accurately sense the sol-gel transition. 1-naphthol can be used to study the thermally induced microenvironmental changes and hydration levels of Pluronic F127 (PF127) in different microenvironments in aqueous media .

HY-Y1309S

1-Naphthol-d8 Furro ER-d₈; NSC 9586-d₈; Nako TRB-d₈	Endogenous Metabolite	Others
1-Naphthol-d₈ is the deuterium labeled 1-Naphthol . 1-naphthol is an excited state proton transfer (ESPT) fluorescent molecular probe .

HBT-Fl-BnB	Fluorescent Dye
HBT-Fl-BnB is a fluorescent probe for the ratiometric detection of ONOO ^- in vitro and in vivo. HBT-Fl-BnB consists of an HBT core with Fl groups at the ortho and para positions responding to the zwitterionic excited-state intramolecular proton-transfer (zwitterionic ESIPT) process and a boronic acid pinacol ester with dual roles that block the zwitterionic ESIPT and recognize ONOO ^- .

Cat. No.	Product Name	Type

HY-I0259

8-Amino-2-naphthol	Biochemical Assay Reagents
8-Amino-2-naphthol is a photoactive charge transfer compounds, which can be used as fluorescent probe. 8-Amino-2-naphthol undergoes excited-state proton transfer (ESPT) to form a zwitterion under acidic conditions, where the photoacidity of its hydroxyl group is regulated by the protonation state of the amino group, enabling pH to act as an on/off switch for photoacidity. 8-Amino-2-naphthol is also utilized as chiral organocatalyst .

8-Amino-2-naphthol

Biochemical Assay Reagents

8-Amino-2-naphthol is a photoactive charge transfer compounds, which can be used as fluorescent probe. 8-Amino-2-naphthol undergoes excited-state proton transfer (ESPT) to form a zwitterion under acidic conditions, where the photoacidity of its hydroxyl group is regulated by the protonation state of the amino group, enabling pH to act as an on/off switch for photoacidity. 8-Amino-2-naphthol is also utilized as chiral organocatalyst .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-Y1309

1-Naphthol Furro ER; NSC 9586; Nako TRB	Structural Classification Monophenols Classification of Application Fields Other Diseases Phenols Endogenous metabolite Disease Research Fields Source Classification	Environmental Pollutants Endogenous Metabolite
1-naphthol (Furro ER) is an excited state proton transfer (ESPT) fluorescent molecular probe. 1-naphthol can sense the hydrophobic domains in micellar aggregation and accurately sense the sol-gel transition. 1-naphthol can be used to study the thermally induced microenvironmental changes and hydration levels of Pluronic F127 (PF127) in different microenvironments in aqueous media .

HY-N16571

Marionol	Structural Classification Flavonols Flavonoids Amaranthaceae Plants Source Classification	Fluorescent Dye Endogenous Metabolite
Marionol is a type of flavonol compound and belongs to the secondary metabolites of plants. Marionol exhibits significant specificity towards Cu²⁺ and possesses the characteristic of intramolecular proton transfer in excited state (ESIPT), enabling it to generate strong fluorescence upon excitation by ultraviolet light. The maximum excitation/emission wavelengths are 350 nm and 510 nm (depending on the solvent), respectively. Marionol can be used as a fluorescence probe for Cu²⁺ .

HY-Y1309R

1-Naphthol (Standard) Furro ER (Standard); NSC 9586 (Standard); Nako TRB (Standard)	Structural Classification Monophenols Phenols Endogenous metabolite Source Classification	Reference Standards Endogenous Metabolite
1-Naphthol (Standard) is the analytical standard of 1-Naphthol. This product is intended for research and analytical applications. 1-naphthol is an excited state proton transfer (ESPT) fluorescent molecular probe.

Cat. No.	Product Name	Chemical Structure

HY-Y1309S1

1-Naphthol-d7
1-Naphthol-d₇ (Furro ER-d₇) is the deuterium labeled Naphthol (HY-Y1309). 1-Naphthol (Furro ER) is an excited state proton transfer (ESPT) fluorescent molecular probe. 1-naphthol can sense the hydrophobic domains in micellar aggregation and accurately sense the sol-gel transition. 1-naphthol can be used to study the thermally induced microenvironmental changes and hydration levels of Pluronic F127 (PF127) in different microenvironments in aqueous media .

1-Naphthol-d7

1-Naphthol-d₇ (Furro ER-d₇) is the deuterium labeled Naphthol (HY-Y1309). 1-Naphthol (Furro ER) is an excited state proton transfer (ESPT) fluorescent molecular probe. 1-naphthol can sense the hydrophobic domains in micellar aggregation and accurately sense the sol-gel transition. 1-naphthol can be used to study the thermally induced microenvironmental changes and hydration levels of Pluronic F127 (PF127) in different microenvironments in aqueous media .

HY-Y1309S

1-Naphthol-d8
1-Naphthol-d₈ is the deuterium labeled 1-Naphthol . 1-naphthol is an excited state proton transfer (ESPT) fluorescent molecular probe .

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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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proton transfer

Inhibitors & Agonists

Fluorescent Dye

Biochemical Assay Reagents

NaturalProducts

Isotope-Labeled Compounds

Natural
Products