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Ritonavir HIV Protease inhibitor

Name: Ritonavir
Brand: Selleck Chemicals
SKU: S1185
Availability: InStock
Rating: 5 (48 reviews)

Cat.No.S1185

Ritonavir is a Cytochrome P450 3A and Protease Inhibitor; Also inhibits Cytochrome P450 2D6, P-Glycoprotein and induces Cytochrome P450 2C19, Cytochrome P450 1A2, Cytochrome P450 2C9, Cytochrome P450 2B6 and UDP Glucuronosyltransferases. This compound induces apoptosis.

Chemical Structure

Molecular Weight: 720.94

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Quality Control

Batch: Purity: 99.98%

99.98

Related Targets	HDAC Caspase Proteasome Secretase MMP HCV Protease Cysteine Protease DPP Tyrosinase Serine Protease
Other HIV Protease Inhibitors	Pepstatin A Limonin Temsavir (BMS-626529) Rosamultin Bevirimat Dextran sulfate sodium (DSS) Mericitabine NBD-556 GS-6207 Azvudine

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (138.7 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 100 mg/mL

Water : 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.
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	30%PEG400 1 0.5%Tween80 2 5%propylene glycol Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	30.000mg/ml (41.61mM)	Taking the 1 mL working solution as an example, add 300 μL of 100 mg/ml clarified PEG400 stock solution to 5 μL of Tween80, mix evenly to clarify it; add 50 μL Propylene glycol to the above system, mix evenly to clarify it; then continue to add 645 μL ddH2O to adjust the volume. to 1 mL. 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	720.94	Formula	C₃₇H₄₈N₆O₅S₂	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	155213-67-5	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	ABT-538,A 84538, RTV			Smiles	CC(C)C(NC(=O)N(C)CC1=CSC(=N1)C(C)C)C(=O)NC(CC(O)C(CC2=CC=CC=C2)NC(=O)OCC3=CN=CS3)CC4=CC=CC=C4

Mechanism of Action

Targets/IC₅₀/Ki	CYP3A4 HIV
In vitro	Ritonavir is a very potent inhibitor of CYP3A4 mediated testosterone 6β-hydroxylation with mean Ki of 19 nM and also inhibits tolbutamide hydroxylation with IC50 of 4.2 μM. This compound is found to be a potent inhibitor of CYP3A-mediated biotransformations (nifedipine oxidation with IC50 of 0.07 mM, 17alpha-ethynylestradiol 2-hydroxylation with IC50 of 2 mM; terfenadine hydroxylation with IC50 of 0.14 mM). It is also found to be an inhibitor of the reactions mediated by CYP2D6 (IC50 = 2.5 mM) and CYP2C9/10 (IC50 = 8.0 mM). This agent results in an increase in cell viability in uninfected human PBMC cultures. It markedly decreases the susceptibility of PBMCs to apoptosis correlated with lower levels of caspase-1 expression, decreases in annexin V staining, and reduces caspase-3 activity in uninfected human PBMC cultures. The compound inhibits induction of tumor necrosis factor (TNF) production by PBMCs and monocytes in a time- and dose-dependent manner at nontoxic concentrations. It inhibits p-glycoprotein-mediated extrusion of saquinavir with an IC50 of 0.2 μM, indicating a high affinity of ritonavir for p-glycoprotein. This chemical inhibits human liver microsomal metabolism of ABT-378 potently with Ki of 13 nM. When combined with ABT-378 (at 3:1 and 29:1 ratios), it inhibits CYP3A (IC50 = 1.1 and 4.6 μM), albeit less potently than Ritonavir (IC50 = 0.14 μM).
References	[1] https://pubmed.ncbi.nlm.nih.gov/9278209/ [2] https://pubmed.ncbi.nlm.nih.gov/8613951/ [3] https://pubmed.ncbi.nlm.nih.gov/10551732/ [4] https://pubmed.ncbi.nlm.nih.gov/11230802/ [5] https://pubmed.ncbi.nlm.nih.gov/10421617/ [6] https://pubmed.ncbi.nlm.nih.gov/29686423/ [7] https://pubmed.ncbi.nlm.nih.gov/33722611/

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06397144	Not yet recruiting	Biological Availability\|Healthy Participants	Pfizer	February 14 2025	Phase 1
NCT06139796	Not yet recruiting	HIV Infections	PENTA Foundation\|AMS-PHPT Research Collaboration\|Institut National de la Santé Et de la Recherche Médicale France\|Centre Mère et Enfant de la Fondation Chantal Biya\|Centre Hospitalier National d''Enfants Albert Royer\|University of Zimbabwe Clinical Research Centre (UZCRC)\|Baylor College of Medicine	June 2024	Phase 1\|Phase 2
NCT05953545	Not yet recruiting	Chronic Hepatitis Delta	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)\|National Institutes of Health Clinical Center (CC)	May 15 2024	Phase 2
NCT06291831	Active not recruiting	COVID-19	Pfizer	March 13 2024	--
NCT06085924	Recruiting	COVID-19	Pfizer	November 14 2023	--
NCT06016556	Completed	Covid-19	Pfizer	October 17 2023	--

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