1-Hexanol's primary biological target is the mitochondrial respiratory chain, where it acts as an uncoupler of mitochondrial respiration through aprotic mechanisms. As a primary alcohol, the compound can partition into lipid membranes and disrupt membrane integrity, affecting mitochondrial function and cellular energy metabolism. The compound may also interact with various enzymes involved in alcohol metabolism, including alcohol dehydrogenase and cytochrome P450 enzymes. In biological systems, 1-hexanol is recognized as a plant metabolite and may interact with olfactory receptors due to its fruity odor. However, specific protein targets have not been extensively characterized.

In vitro activity of 1-hexanol has been demonstrated in mitochondrial respiration studies, where the compound acts as an uncoupler of oxidative phosphorylation through aprotic mechanisms. The compound's surfactant properties enable it to interact with and disrupt biological membranes, potentially affecting membrane-bound enzymes and transport processes. In cell culture, 1-hexanol may be used as a model compound for studying alcohol-induced membrane effects and mitochondrial dysfunction. The compound's metabolism by alcohol dehydrogenase to hexanal and subsequently to hexanoic acid can be studied in vitro using enzyme preparations or tissue homogenates.

In vivo activity of 1-hexanol is primarily associated with its metabolism and potential toxicological effects. As a primary alcohol, 1-hexanol is metabolized by alcohol dehydrogenase to hexanal and then to hexanoic acid, which enters fatty acid oxidation pathways. The compound's surfactant properties may contribute to irritant effects upon skin or mucosal exposure. Inhalation of 1-hexanol vapor may cause respiratory tract irritation. The compound's fruity odor suggests that it may be detected by olfactory receptors at low concentrations. However, comprehensive in vivo pharmacological studies are limited, as the compound is primarily used as an industrial chemical and precursor.

In vitro enzyme assays for 1-hexanol typically involve alcohol dehydrogenase activity measurements. A typical protocol involves incubating 1-hexanol with purified alcohol dehydrogenase or tissue homogenates in the presence of NAD+ as cofactor in appropriate buffer systems (e.g., glycine-NaOH buffer, pH 9.0–10.0) at 25–37°C. The reduction of NAD+ to NADH is monitored spectrophotometrically at 340 nm. Enzyme activity is calculated based on the rate of NADH formation. Controls include reactions without substrate and without enzyme. The compound's limited water solubility should be considered, and appropriate solubilization methods may be required.

Cell-based in vitro experiments with 1-hexanol are performed to study alcohol-induced effects on cellular function. Cells are cultured in appropriate media at 37°C in a 5% CO₂ atmosphere and treated with 1-hexanol at various concentrations (typically 0.1–100 mM) for various time periods. Endpoints include cell viability (MTT or LDH release), mitochondrial function (respiration rate, membrane potential), membrane integrity, and oxidative stress markers. The compound's surfactant properties and ability to uncouple mitochondrial respiration should be considered in experimental design and interpretation. Appropriate solvent controls and positive controls (e.g., other alcohols or uncouplers) should be included.

In vivo animal studies for 1-hexanol are primarily conducted for toxicological assessment rather than pharmacological evaluation. Typical protocols involve administration via oral gavage, inhalation, or dermal exposure to rodents at various dose levels. Endpoints include general toxicity (mortality, body weight, clinical signs), organ histopathology, clinical chemistry, and hematology. Inhalation studies assess respiratory tract irritation and systemic effects. For metabolism studies, animals are administered 1-hexanol and blood, urine, and tissues are collected for metabolite analysis. All animal studies must be conducted in accordance with institutional guidelines.

Absorption, Distribution and Excretion
The permeability of isolated rat skin to 1-Hexanols increased due to hydration within the first 10 hours, then returned to baseline levels. The reported dermal flux of human skin (epidermis) in vitro is 0.044 mg/cm²/hr, indicating low dermal absorption. Metabolism/Metabolites 1-Hexanols is converted to hexanoic acid via a series of oxidation processes, followed by β-oxidation. Similar to pentanol and n-octanol, 1-Hexanols has a high affinity for alcohol dehydrogenase (ADH) and is a potent inhibitor of ethanol oxidation. The metabolic pathway of 1-Hexanols involves direct binding to glucuronic acid, oxidation to carboxylic acid, and ultimately, carbon dioxide. Rabbit metabolic studies indicate that oxidation to hexanoic acid is the primary metabolic pathway, mediated by alcohol dehydrogenases and aldehyde dehydrogenases. Direct binding to glucuronic acid is a secondary metabolic pathway.

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Pharmacokinetic properties of 1-hexanol have been partially characterized. As a small lipophilic alcohol with molecular weight 102.18 g/mol and a LogP of approximately 2.0, the compound is well absorbed through oral, inhalation, and dermal routes. It distributes to lipid-rich tissues and crosses biological membranes readily. Metabolism occurs primarily via alcohol dehydrogenase to hexanal and then to hexanoic acid, which undergoes fatty acid oxidation. Metabolites are excreted in urine and feces, with some parent compound eliminated through respiration and as glucuronide conjugates. The compound has a boiling point of 156–157°C and a vapor pressure that allows for significant inhalation exposure.

Non-Human Toxicity Values
Mice oral LD50: 1950 mg/kg Mice oral LD50: 4000 mg/kg Rat oral LD50: 720 mg/kg Rat oral LD50: 4590 mg/kg For more complete non-human toxicity data for 1-Hexanols (9 types in total), please visit the HSDB record page.

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Toxicological data for 1-hexanol indicate that the compound can cause irritation to skin, eyes, and respiratory tract upon exposure. The compound is a primary alcohol with surfactant properties that can disrupt biological membranes. Acute toxicity studies have been conducted, though specific LD50 values vary by species and route of administration. Inhalation of high concentrations may cause central nervous system depression. The compound should be handled with appropriate personal protective equipment including gloves, goggles, and lab coats. Adequate ventilation should be ensured when handling the compound. In case of contact, affected areas should be rinsed with plenty of water. The compound should be stored in a cool, dry place away from strong oxidizing agents.

[1]. Surface potential of 1-hexanol solution: comparison with methyl isobutyl carbinol. J Phys Chem B. 2013 Jun 27;117(25):7615-20.

[2]. The nature of uncoupling by n-hexane, 1-hexanethiol and 1-hexanol in rat liver mitochondria. Biochim Biophys Acta. 1996 May 20;1274(1-2):39-47.

Hexanols is a transparent, colorless liquid composed of six-carbon isomers of alcohols with similar chemical properties. Its vapor is heavier than air. It is used in pharmaceutical manufacturing and as a solvent. n-Hexanols is a transparent, colorless liquid. Its flash point is 149 °F (65 °C). It is less dense than water and insoluble in water. Its vapor is heavier than air. n-Hexanols is a primary alcohol, a compound in which hexane is replaced by a hydroxyl group at the 1-position. It can be used as a plant metabolite, antibacterial agent, fragrance, and warning pheromone. It is both a primary alcohol and Hexanols. 1-Hexanols has been reported to exist in Magnolia officinalis, Pternistria bispina, and other organisms with relevant data. 1-Hexanols is an organic alcohol with a six-carbon chain and its structural formula is CH3(CH2)5OH. This colorless liquid is slightly soluble in water but miscible with ether and ethanol. 1-Hexanols also has two straight-chain isomers, 2-Hexanols and 3-Hexanols, which differ in the position of the hydroxyl group. Many isomeric alcohols have the molecular formula C6H13OH. 1-Hexanols is considered one of the components of the freshly cut grass scent. It is used in the perfume industry. 1-Hexanols is a metabolite found or produced in Saccharomyces cerevisiae. See also: Alcohols, C6-9 (note moved to). Mechanism of Action… Studies have found that ethanol and 1-Hexanols exhibit two competing concentration-dependent effects on the Ca(2+)-dependent, phorbol ester-dependent, or diacylglycerol-dependent activities of PKCα associated with RhoA or Cdc42: low concentrations of alcohol enhance activity, while high concentrations weaken it. Measurements of the concentration-response curves of Cdc42-induced activation of Ca²⁺, phorbol ester, and diacylglycerol showed that the activation effect corresponds to a shift of the midpoint of each curve towards lower activator concentrations, while the weakening effect corresponds to a decrease in the level of induced activity at the maximum activator concentration. The presence of ethanol enhanced the interaction between PKCα and Cdc42 within the concentration range corresponding to the enhancing effect, while higher concentrations of ethanol (which were found to reduce activity) had no effect on binding levels.

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Therapeutic Use
MeSH Title: Anesthetics, Nicotine Antagonists

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1-Hexanol is an industrial chemical and research reagent rather than an approved pharmaceutical drug. Its primary applications are as a precursor to plasticizers, a chemical intermediate for pharmaceuticals, and in perfume esters and antiseptics. The compound is also used as a surfactant to enhance interfacial properties in industrial processes. In research, 1-hexanol is studied as a model compound for alcohol metabolism and membrane effects, and as a plant metabolite. The compound's fruity odor and aromatic flavor contribute to its use in flavor and fragrance applications. No clinical trials or regulatory approvals have been documented for this compound as a therapeutic agent. The compound is commercially available as a research-grade chemical, supplied for laboratory and industrial applications.

C6H14O

102.17

102.104

111-27-3

1-Hexanol-d13;204244-84-8;1-Hexanol-d11;2159-18-4;1-Hexanol-d3;52598-04-6;1-Hexanol-d5;64118-18-9

8103

Colorless to light yellow liquid

0.8±0.1 g/cm3

158.2±3.0 °C at 760 mmHg

-48.3 °F (USCG, 1999) ; -44.6 °C ; -44.6 °C ; -44.6 °C ; -46.7 °C

60.0±0.0 °C

0.9±0.6 mmHg at 25°C

1.416

1.94

1

1

4

7

27.4

0

O([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H]

ZSIAUFGUXNUGDI-UHFFFAOYSA-N

InChI=1S/C6H14O/c1-2-3-4-5-6-7/h7H,2-6H2,1H3

hexan-1-ol

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Ethanol: 100 mg/mL (978.76 mM)

Solubility in Formulation 1: ≥ 2.5 mg/mL (24.47 mM) (saturation unknown) in 10% EtOH + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear EtOH stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

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Solubility in Formulation 2: ≥ 2.5 mg/mL (24.47 mM) (saturation unknown) in 10% EtOH + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear EtOH stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (24.47 mM) (saturation unknown) in 10% EtOH + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear EtOH stock solution to 900 μL of corn oil and mix evenly.

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 (Please use freshly prepared in vivo formulations for optimal results.)