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α-Pyridone (Pyridin-2-one; α-Hydroxypyridine)

α-Pyridone is an endogenously produced metabolite.
α-Pyridone (Pyridin-2-one; α-Hydroxypyridine)
α-Pyridone (Pyridin-2-one; α-Hydroxypyridine) Chemical Structure CAS No.: 142-08-5
Product category: Endogenous Metabolite
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
25g
Other Sizes
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Product Description
α-Pyridone is an endogenously produced metabolite.
α-Pyridone, also known as Pyridin-2-one, 2-Hydroxypyridine, or 2-Pyridone, is a monohydroxypyridine with the molecular formula C5H5NO and a molecular weight of 95.10. It is an endogenously produced metabolite and also functions as a plant metabolite. This compound is a pyridine substituted by a hydroxy group at position 2, existing in a tautomeric equilibrium with 2-hydroxypyridine.
Biological Activity I Assay Protocols (From Reference)
Targets
Human Endogenous Metabolite
α-Pyridone is classified as a human endogenous metabolite. It may interact with various metabolic pathways and enzymes involved in pyridine metabolism. As a plant metabolite, it is involved in secondary metabolism in species such as Perilla frutescens and Lotus burttii.
ln Vitro
In vitro, α-pyridone is used in studies of pyridine metabolism and as a reference standard for analytical chemistry. Its tautomeric forms (2-pyridone and 2-hydroxypyridine) exhibit different chemical properties and reactivities. The compound is also used in the synthesis of various heterocyclic compounds and as a building block in organic chemistry.
ln Vivo
In vivo, α-pyridone is produced endogenously and excreted in urine. Its role as a metabolite suggests involvement in normal physiological processes. As a plant metabolite, it contributes to the chemical defense and signaling mechanisms of plants. Comprehensive in vivo studies of its pharmacological effects are limited.
Enzyme Assay
In vitro enzyme assays for α-pyridone typically involve studying enzymes that metabolize pyridine derivatives, such as pyridine hydroxylases or dehydrogenases. The compound is used as a substrate or product to measure enzyme activity. Assays are performed using isolated enzymes or tissue homogenates, and the reaction products are analyzed by chromatographic or spectroscopic methods.
Cell Assay
In vitro cell experiments with α-pyridone are not extensively documented. The compound may be used in cell culture studies to investigate the metabolism of pyridine derivatives or to assess the cytotoxicity of related compounds. Its role as an endogenous metabolite suggests that it is produced and metabolized by cells under normal physiological conditions.
Animal Protocol
In vivo animal experiments with α-pyridone are not well-characterized. As an endogenous metabolite, it is present in biological fluids and tissues. Studies on pyridine metabolism in animal models may involve administering pyridine or related compounds and measuring the levels of α-pyridone and other metabolites to assess metabolic pathways and enzyme activities.
ADME/Pharmacokinetics
Pharmacokinetic data for α-pyridone are limited. As a small, polar molecule, it is expected to be readily absorbed and distributed in the body. It is excreted in urine as a metabolite. The compound has a logP of -0.58, indicating moderate hydrophilicity. It is soluble in DMSO at concentrations up to 100 mg/mL and has a melting point of 105-107°C.
Toxicity/Toxicokinetics
Toxicological data for α-pyridone are limited. As an endogenous metabolite, it is generally considered to have low toxicity. However, high concentrations of pyridine derivatives may be toxic. The compound is intended for research use only and not for human consumption. No comprehensive toxicological studies have been reported.
Additional Infomation
2-Pyridine-2-ol is a monohydroxypyridine, meaning that pyridine is substituted with a hydroxyl group at the 2-position. It is a plant metabolite. It has been reported that 2-hydroxypyridine is found in perilla, spider lily, and other organisms with relevant data.
α-Pyridone is a research chemical with applications in organic synthesis, analytical chemistry, and metabolomics. It serves as a reference standard for the identification and quantification of pyridine metabolites in biological samples. No clinical trials or approved therapeutic indications exist for this compound. Its mechanism of action is related to its role as a metabolite in pyridine metabolism and plant secondary metabolism.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C5H5NO
Molecular Weight
95.10
Exact Mass
95.037
CAS #
142-08-5
PubChem CID
8871
Appearance
Off-white to yellow solid powder
Density
1.1±0.1 g/cm3
Boiling Point
323.7±15.0 °C at 760 mmHg
Melting Point
107.8 °C
Flash Point
181.1±5.3 °C
Vapour Pressure
0.0±0.7 mmHg at 25°C
Index of Refraction
1.514
LogP
-0.58
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
1
Rotatable Bond Count
0
Heavy Atom Count
7
Complexity
135
Defined Atom Stereocenter Count
0
SMILES
C1=CC(=O)NC=C1
InChi Key
UBQKCCHYAOITMY-UHFFFAOYSA-N
InChi Code
InChI=1S/C5H5NO/c7-5-3-1-2-4-6-5/h1-4H,(H,6,7)
Chemical Name
1H-pyridin-2-one
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 100 mg/mL (1051.52 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (26.29 mM) (saturation unknown) in 10% DMSO + 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 DMSO 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.

Solubility in Formulation 2: ≥ 2.5 mg/mL (26.29 mM) (saturation unknown) in 10% DMSO + 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 DMSO 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.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 10.5152 mL 52.5762 mL 105.1525 mL
5 mM 2.1030 mL 10.5152 mL 21.0305 mL
10 mM 1.0515 mL 5.2576 mL 10.5152 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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