Nicotinamide N-oxide

Name: Nicotinamide N-oxide
Brand: MedChemExpress
SKU: HY-101407
Rating: 4.5 (1 reviews)

Cat. No.: HY-101407 Purity: 99.85%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

Nicotinamide N-oxide, an in vivo nicotinamide metabolite, is a potent, and selective antagonist of the CXCR2 receptor.

For research use only. We do not sell to patients.

Nicotinamide N-oxide Chemical Structure

CAS No. : 1986-81-8

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	USD 66	In-stock	Estimated Time of Arrival: December 31
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10 mM * 1 mL in DMSO	USD 66	In-stock	Estimated Time of Arrival: December 31
Solid
100 mg	USD 60	In-stock	Estimated Time of Arrival: December 31
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Based on 1 publication(s) in Google Scholar

Other Forms of Nicotinamide N-oxide:

Nicotinamide N-oxide (Standard) Get quote

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Biological Activity
Purity & Documentation
References
Customer Review

Description

Nicotinamide N-oxide, an in vivo nicotinamide metabolite, is a potent, and selective antagonist of the CXCR2 receptor.

IC₅₀ & Target^[1]^[2]

CXCR2

In Vitro

Nicotinamide is one of the forms of vitamin B₃. It is a precursor for nicotinamide adenine dinucleotide, which is best known as an electron carrier in oxidative phosphorylation and as a cofactor for many dehydrogenases. It is metabolized through two enzymatic systems. The first system starts with the methylation of nicotinamide by nicotinamide N-methyltransferase, which can subsequently be oxidized by aldehyde oxidase. The second enzymatic system oxidizes nicotinamide to nicotinamide N-oxide^[1]. A series of nicotinamide N-oxides is synthesized and shown to be novel, potent, and selective antagonists of the CXCR2 receptor. Compound 1 has demonstrated potent inhibition of neutrophil chemotaxis (IC₅₀=10 nM). Compound 2 is a selective antagonist of IL-8 binding (IC₅₀=110 nM) and potent inhibitor of neutrophil chemotaxis (IC₅₀=170 nM)^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

138.12

Formula

C₆H₆N₂O₂

CAS No.

1986-81-8

Appearance

Solid

Color

White to off-white

SMILES

O=C(C1=C[N+]([O-])=CC=C1)N

Structure Classification

Initial Source

Endogenous metabolite

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Solvent & Solubility

In Vitro:

H₂O : 20 mg/mL (144.80 mM; Need ultrasonic)

DMSO : 10 mg/mL (72.40 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	7.2401 mL	36.2004 mL	72.4008 mL
5 mM	1.4480 mL	7.2401 mL	14.4802 mL
10 mM	0.7240 mL	3.6200 mL	7.2401 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 1 mg/mL (7.24 mM); Clear solution

This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 1 mg/mL (7.24 mM); Clear solution

This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: PBS
Solubility: 5.56 mg/mL (40.25 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Calculation results:

Working solution concentration: mg/mL

This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).

Purity & Documentation

Purity: 99.85%

Select Batch:

Data Sheet (271 KB) SDS (393 KB)

COA (246 KB) LCMS (262 KB)

Handling Instructions (2659 KB)

References

[1]. Real AM, et al. Nicotinamide N-oxidation by CYP2E1 in human liver microsomes. Drug Metab Dispos. 2013 Mar;41(3):550-3. [Content Brief]

[2]. Cutshall NS, et al. Nicotinamide N-oxides as CXCR2 antagonists. Bioorg Med Chem Lett. 2001 Jul 23;11(14):1951-4. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO / H₂O	1 mM	7.2401 mL	36.2004 mL	72.4008 mL	181.0020 mL
	5 mM	1.4480 mL	7.2401 mL	14.4802 mL	36.2004 mL
	10 mM	0.7240 mL	3.6200 mL	7.2401 mL	18.1002 mL
	15 mM	0.4827 mL	2.4134 mL	4.8267 mL	12.0668 mL
	20 mM	0.3620 mL	1.8100 mL	3.6200 mL	9.0501 mL
	25 mM	0.2896 mL	1.4480 mL	2.8960 mL	7.2401 mL
	30 mM	0.2413 mL	1.2067 mL	2.4134 mL	6.0334 mL
	40 mM	0.1810 mL	0.9050 mL	1.8100 mL	4.5251 mL
	50 mM	0.1448 mL	0.7240 mL	1.4480 mL	3.6200 mL
	60 mM	0.1207 mL	0.6033 mL	1.2067 mL	3.0167 mL
H₂O	80 mM	0.0905 mL	0.4525 mL	0.9050 mL	2.2625 mL
H₂O	100 mM	0.0724 mL	0.3620 mL	0.7240 mL	1.8100 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.