1. Stem Cell/Wnt Metabolic Enzyme/Protease Epigenetics Cell Cycle/DNA Damage Anti-infection
  2. Organoid Endogenous Metabolite Sirtuin HBV
  3. Nicotinamide

Nicotinamide  (Synonyms: Niacinamide; Nicotinic acid amide)

Cat. No.: HY-B0150 Purity: 99.99%
COA Handling Instructions

Nicotinamide is a form of vitamin B3 or niacin. Nicotinamide Hydrochloride inhibits SIRT2 activity (IC50: 2 μM). Nicotinamide also inhibits SIRT1. Nicotinamide increases cellular NAD+, ATP, ROS levels. Nicotinamide inhibits tumor growth and improves survival. Nicotinamide also has anti-HBV activity.

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

Nicotinamide Chemical Structure

Nicotinamide Chemical Structure

CAS No. : 98-92-0

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Customer Review

Based on 48 publication(s) in Google Scholar

Other Forms of Nicotinamide:

Top Publications Citing Use of Products

48 Publications Citing Use of MCE Nicotinamide

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Description

Nicotinamide is a form of vitamin B3 or niacin. Nicotinamide Hydrochloride inhibits SIRT2 activity (IC50: 2 μM). Nicotinamide also inhibits SIRT1. Nicotinamide increases cellular NAD+, ATP, ROS levels. Nicotinamide inhibits tumor growth and improves survival. Nicotinamide also has anti-HBV activity[1][2][3][4].

IC50 & Target[1][2]

Human Endogenous Metabolite

 

SIRT2

2 μM (EC50)

SIRT1

50-180 μM (IC50)

In Vitro

Nicotinamide (0-50 mM, 24/48 h ) reduces cell number in a time-dependent and dose-dependent manner in A375 and SK-MEL-28 cells[1].
Nicotinamide (10-50 mM, 24 h ) makes A375 cells undergo accumulation in G1 phase, reduction in S phase, and increase inthe sub-G1 (apoptosis) phase[1].
Nicotinamide (1-50 mM, 6 h ) increases NAD+, ATP and ROS levels in A375 and SK-MEL-28 cells[1].
Nicotinamide Hydrochloride (0.01-20 mM, 1 h) inhibits purified SIRT2 enzymatic activity in vitro with an EC50 of 2 μM[1].
Nicotinamide (0-64 mM) inhibits HBV replication in HepAD38 and HepG2.2.15 cells[3].
Nicotinamide (10 mM, on day 13) promotes pancreatic cell differentiation from human embryonic stem cells (hESCs) through CK1 and ROCK inhibition[4].

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

Cell Viability Assay[1]

Cell Line: A375, SK-MEL-28, mouse B16-F10 cell
Concentration: 0, 1, 20, 50 mM
Incubation Time: 24 h, 48 h
Result: Reduced cell number in a dose-dependent manner with a strong inhibitory effect at 20mM and an almost complete effect at 50 mM.

Cell Cycle Analysis[1]

Cell Line: A375, SK-MEL-28
Concentration: 10, 20, 50 mM
Incubation Time: 24 h
Result: Arrested A375 cells in G1 phase.
In Vivo

Nicotinamide Hydrochloride (Intraperitoneal injection, 1500 and 1800 mg/Kg, 5 days per week) inhibits tumor growth in murine metastatic melanoma model[1].
Nicotinamide Hydrochloride (Intraperitoneal injection, 1800 mg/Kg, once a day, murine metastatic melanoma model) affects IFN-γ (a key mediator of cell-mediated anti-tumor immunity), increases the plasma levels of Eotaxin and IL-5, reduces the plasma levels of IL-3, IL-12, RANTES and IL-10[1].
Nicotinamide Hydrochloride (vein injection, 0-200 mg/kg, 5 days) inhibits HBV replication in HBV-transgenic mice[3].

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

Animal Model: C57BL/6 mice (subcutaneous injected with B16-F10 cells)[1]
Dosage: 1000, 1500, 1800 mg/Kg.
Administration: Intraperitoneal injection, 5 days per week (followed by 2-day rest) or once a day.
Result: Inhibited tumor growth at 1500 and 1800 mg/Kg, and had no effect on the body weight.
Increased the frequency of IFN-γ producing cells and modulated the protein levels of cytokines and chemokines in the plasma of tumor-bearing mice.
Animal Model: HBV-transgenic mice[3]
Dosage: 0-200 mg/kg
Administration: Vein injection, 5 days
Result: Reduced serum HBV DNA.
Clinical Trial
Molecular Weight

122.12

Formula

C6H6N2O

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(C1=CC=CN=C1)N

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, protect from light

*In solvent : -80°C, 1 year; -20°C, 6 months (protect from light)

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (409.43 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : ≥ 50 mg/mL (409.43 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 8.1887 mL 40.9433 mL 81.8867 mL
5 mM 1.6377 mL 8.1887 mL 16.3773 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, 1 year; -20°C, 6 months (protect from light). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

* 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)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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: ≥ 2.5 mg/mL (20.47 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (20.47 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: 100 mg/mL (818.87 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

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: 99.99%

References

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, 1 year; -20°C, 6 months (protect from light). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO / H2O 1 mM 8.1887 mL 40.9433 mL 81.8867 mL 204.7167 mL
5 mM 1.6377 mL 8.1887 mL 16.3773 mL 40.9433 mL
10 mM 0.8189 mL 4.0943 mL 8.1887 mL 20.4717 mL
15 mM 0.5459 mL 2.7296 mL 5.4591 mL 13.6478 mL
20 mM 0.4094 mL 2.0472 mL 4.0943 mL 10.2358 mL
25 mM 0.3275 mL 1.6377 mL 3.2755 mL 8.1887 mL
30 mM 0.2730 mL 1.3648 mL 2.7296 mL 6.8239 mL
40 mM 0.2047 mL 1.0236 mL 2.0472 mL 5.1179 mL
50 mM 0.1638 mL 0.8189 mL 1.6377 mL 4.0943 mL
60 mM 0.1365 mL 0.6824 mL 1.3648 mL 3.4119 mL
80 mM 0.1024 mL 0.5118 mL 1.0236 mL 2.5590 mL
100 mM 0.0819 mL 0.4094 mL 0.8189 mL 2.0472 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.

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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