Name: Rifampin (Rifampicin)
Brand: Selleck Chemicals
SKU: S1764
Availability: InStock
Rating: 5 (15 reviews)

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Quality Control

Batch: Purity: 98.49%

98.49

Related Targets	HDAC PARP ATM/ATR DNA-PK WRN DNA/RNA Synthesis Topoisomerase PPAR Sirtuin Casein Kinase
Other Antineoplastic and Immunosuppressive Antibiotics Inhibitors	Staurosporine (STS) Cyclosporin A Oligomycin A (MCH 32) Puromycin Dihydrochloride Nigericin sodium salt Geldanamycin (NSC 122750) Honokiol Streptozotocin (STZ) Sodium Monensin (NSC 343257) Cephalomannine

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (121.51 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	5.000mg/ml (6.08mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.625mg/ml (0.76mM)	Taking the 1 mL working solution as an example, add 50 μL of 12.5 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	822.94	Formula	C₄₃H₅₈N₄O₁₂	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	13292-46-1	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	NSC-113926			Smiles	CC1C=CC=C(C(=O)NC2=C(C(=C3C(=C2O)C(=C(C4=C3C(=O)C(O4)(OC=CC(C(C(C(C(C(C1O)C)O)C)OC(=O)C)C)OC)C)C)O)O)C=NN5CCN(CC5)C)C

Mechanism of Action

Targets/IC₅₀/Ki	RNA polymerase
In vitro	Rifampin (Rifampicin) inhibits IκBα degradation and mitogen-activated protein kinase (MAPK) phosphorylation. It is found to bind to human MD-2 in a concentration-dependent manner for both the compound and MD-2. This compound inhibits NF-κB activation induced by LPS (20 ng/ml) in a dose-dependent manner, with an IC50 of 44.1 μM in Blue hTLR4 293 cells (A) and immunocompetent microgial BV-2 cell. At 50 μM, it suppresses NF-κB activation at varying LPS doses, and the maximum NF-κB level induced by LPS in its presence is much lower than that in its absence. It also inhibits NO production induced by LPS (200 ng/ml) in a dose-dependent manner in BV-2 cells, with an IC50 of 21.2 μM. Furthermore, it suppresses LPS induced TNF-α and IL-1β production in both microglia BV-2 and RAW 264.7 macrophage cells. Its inhibition of innate immune signaling is independent of the pregnane X receptor NR1I2. When combined with polyester vascular prostheses (PVP) functionalised with cyclodextrin (PVP-CD), it results in significant bacterial adhesion reduction and growth inhibition against Gram-positive bacteria. At 50 μg/mL, it significantly reduces the CFU counts of stationary-phase cultures and reduces the CFU counts of the log-phase culture to zero. It is particularly suitable since it is bactericidal and starts killing M. tuberculosis within an hour of exposure.
References	[1] https://pubmed.ncbi.nlm.nih.gov/23568774/ [2] https://pubmed.ncbi.nlm.nih.gov/24140067/ [3] https://pubmed.ncbi.nlm.nih.gov/11053379/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05685719	Completed	COVID-19 Pneumonia	Zhejiang ACEA Pharmaceutical Co. Ltd.	January 4 2023	Phase 1
NCT05635110	Completed	Pain	Vertex Pharmaceuticals Incorporated	December 15 2022	Phase 1
NCT05098041	Completed	Healthy Volunteers	Takeda	November 22 2021	Phase 1
NCT04933682	Completed	Healthy	Alexion Pharmaceuticals Inc.	June 23 2021	Phase 1

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Handling Instructions

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Rifampin (Rifampicin) Antineoplastic and Immunosuppressive Antibiotics inhibitor

Chemical Structure

Molecular Weight: 822.94