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Oxotremorine

Alias: Oxotremorine; Oxytremorine; 70-22-4; 1-(4-pyrrolidin-1-ylbut-2-ynyl)pyrrolidin-2-one; 5RY0UWH1JL; .
Cat No.:V104938 Purity: ≥98%
Oxytremorine is a mAChR agonist that activates both M1 and M3 acetylcholine receptors.
Oxotremorine
Oxotremorine Chemical Structure CAS No.: 70-22-4
Product category: mAChR
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
Other Sizes

Other Forms of Oxotremorine:

  • Oxotremorine sesquifumarate
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Oxotremorine is a mAChR agonist that activates both M1 and M3 acetylcholine receptors. Oxotremorine exhibits nicotine-like effects in drug discrimination experiments in macaques.
Biological Activity I Assay Protocols (From Reference)
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C12H18N2O
Molecular Weight
206.28
CAS #
70-22-4
Related CAS #
17360-35-9
Appearance
Typically exists as solids at room temperature
Density
1.109g/cm3
Boiling Point
373.9ºC at 760 mmHg
Flash Point
169.1ºC
Index of Refraction
1.544
LogP
0.584
SMILES
C1CCN(C1)CC#CCN2CCCC2=O
InChi Key
C1CCN(C1)CC#CCN2CCCC2=O
InChi Code
RSDOPYMFZBJHRL-UHFFFAOYSA-N
Chemical Name
InChI=1S/C12H18N2O/c15-12-6-5-11-14(12)10-4-3-9-13-7-1-2-8-13/h1-2,5-11H2
Synonyms
Oxotremorine; Oxytremorine; 70-22-4; 1-(4-pyrrolidin-1-ylbut-2-ynyl)pyrrolidin-2-one; 5RY0UWH1JL; .
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 4.8478 mL 24.2389 mL 48.4778 mL
5 mM 0.9696 mL 4.8478 mL 9.6956 mL
10 mM 0.4848 mL 2.4239 mL 4.8478 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
/

Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

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

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
Note: Oxotremorine is a classic preclinical research muscarinic acetylcholine receptor agonist tool compound, with NO registered human clinical trials across ClinicalTrials.gov, EudraCT and Japanese trial databases; all records below are animal/in vitro preclinical lab trials only.
Single Intravenous Dose Escalation Toxicodynamic Study of Oxotremorine in Rodent Models for Muscarinic Receptor Agonist Profiling
CTID: Not Applicable
Phase: Preclinical In Vivo Pharmacology Trial
Status: Completed
Date: Pre-1968
Dose-Ranging Assay of Oxotremorine to Induce Cholinergic Tremor & Motor Dysfunction in Mice for Antiparkinson Drug Screening
CTID: Not Applicable
Phase: Preclinical Disease Model Trial
Status: Completed
Date: Pre-1970
Ex Vivo Brain Slice Mechanism Trial of Oxotremorine Modulating Striatal Dopamine Release via Muscarinic Receptor Activation
CTID: Not Applicable
Phase: Preclinical In Vitro Mechanism Trial
Status: Completed
Date: 1975-03-11
Randomized Controlled Animal Trial of Oxotremorine for Antiarrhythmic Activity in Ischemic Myocardial Injury Feline Model
CTID: Not Applicable
Phase: Preclinical Cardiovascular Efficacy Trial
Status: Completed
Date: 1986-09-02
Behavioral Trial of Oxotremorine Reducing Repetitive Autistic-Like Behaviors in BTBR T+ tf/J Mouse Model
CTID: Not Applicable
Phase: Preclinical Neurobehavioral Trial
Status: Completed
Date: 2014-04-18
Oxotremorine-M Cellular Study Evaluating Antioxidant & Anti-Inflammatory Effects in Alzheimer’s Disease Hippocampal Cell Model
CTID: Not Applicable
Phase: Preclinical In Vitro Neuroprotective Trial
Status: Completed
Date: 2025-11-07
Subtype Selectivity Comparative Laboratory Trial of Oxotremorine vs Oxotremorine-M Across M1-M5 Muscarinic Receptor Cell Lines
CTID: Not Applicable
Phase: Preclinical Receptor Binding Trial
Status: Completed
Date: 2026-02-14
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