Name: Ulipristal Acetate (CDB 2914)
Brand: Selleck Chemicals
SKU: S3081
Availability: InStock
Rating: 5 (3 reviews)

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Quality Control

Batch: Purity: 99.95%

99.95

Related Targets	Adrenergic Receptor GPR Androgen Receptor Glucocorticoid Receptor ACE RAAS Progesterone Receptor Opioid Receptor PGES THR
Other Estrogen/progestogen Receptor Inhibitors	Elacestrant (RAD1901) Dihydrochloride MPP dihydrochloride Cholesterol Endoxifen HCl G15 Chrysin Licochalcone A AZD9496 PHTPP Liquiritigenin

Solubility

In vitro
Batch:

DMSO : 83 mg/mL (174.5 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 14 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.
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.	4.750mg/ml (9.99mM)	Taking the 1 mL working solution as an example, add 50 μL of 95 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.	0.790mg/ml (1.66mM)	Taking the 1 mL working solution as an example, add 50 μL of 15.8 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	475.62	Formula	C₃₀H₃₇NO₄	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	126784-99-4	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	HRP 2000, RU 44675			Smiles	CC(=O)C1(CCC2C1(CC(C3=C4CCC(=O)C=C4CCC23)C5=CC=C(C=C5)N(C)C)C)OC(=O)C

Mechanism of Action

Targets/IC₅₀/Ki	Progesterone receptor
In vitro	Ulipristal acetate (CDB 2914) has partial agonistic as well as antagonistic effects on the progesterone receptor. It also binds to the glucocorticoid receptor, but has no relevant affinity to the estrogen, androgen and mineralocorticoid receptors.
In vivo	Based on clinical trials, Ulipristal Acetate (CDB 2914) seems to be a reasonably tolerable and effective method of emergency contraception when used within 120 hours of intercourse. It is at least as effective as LNG when used within the first 72 hours after unprotected intercourse. However, this compound may be more effective than LNG when used between 72 to 120 hours after unprotected intercourse, extending the window of opportunity for emergency contraception.
References	[1] https://pubmed.ncbi.nlm.nih.gov/15120421/ [2] https://pubmed.ncbi.nlm.nih.gov/22154199/ [3] https://pubmed.ncbi.nlm.nih.gov/21666089/

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT03349190	Completed	Infertility Female\|Fibroid Uterus	ASSOCIATION POUR LE DEVELOPPEMENT EN FECONDATION IN VITRO\|Gedeon Richter Plc.	December 29 2017	--
NCT03118297	Completed	Contraception\|Bleeding	Washington University School of Medicine	May 1 2017	Phase 3
NCT03156127	Withdrawn	Uterine Myoma	Boryung Pharmaceutical Co. Ltd	May 19 2017	Phase 1
NCT02859337	Completed	Obesity\|Contraception	Oregon Health and Science University\|National Institutes of Health (NIH)	May 30 2017	Phase 4
NCT02408770	Completed	Breast Cancer	Manchester University NHS Foundation Trust\|University of Manchester	January 22 2016	Phase 2

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Ulipristal Acetate (CDB 2914) Estrogen/progestogen Receptor modulator

Chemical Structure

Molecular Weight: 475.62