1-Phenyl-2-pyrrolidinone (Synonyms: 1-Phenylpyrrolidin-2-one)

Cat. No.: HY-W103463 Purity: 99.86%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

1-Phenyl-2-pyrrolidinone (1-Phenylpyrrolidin-2-one) is a phenyl analogue of GABA with sedative effect, decreasing the exploratory behavior of rats at 50-100 mg/kg (i.v.). 1-Phenyl-2-pyrrolidinone also has been proved to inhibit emotional reactions in dogs and cats. 1-Phenyl-2-pyrrolidinone induces decreases in the pressor reaction to emotional stress without accompanied by normalization of the function of baroreceptor reflexes.

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

1-Phenyl-2-pyrrolidinone Chemical Structure

CAS No. : 4641-57-0

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Purity & Documentation
References
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Description

Molecular Weight

161.20

Formula

C₁₀H₁₁NO

CAS No.

4641-57-0

Appearance

Solid

Color

White to off-white

SMILES

C1=CC=C(C=C1)N2CCCC2=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (620.35 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	6.2035 mL	31.0174 mL	62.0347 mL
5 mM	1.2407 mL	6.2035 mL	12.4069 mL
10 mM	0.6203 mL	3.1017 mL	6.2035 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

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 (15.51 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 (15.51 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.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (15.51 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

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).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 99.86%

Select Batch:

Data Sheet (276 KB) SDS (393 KB)

COA (255 KB) HNMR (237 KB) LCMS (91 KB)

Handling Instructions (2659 KB)

References

[1]. Patkina N, et al. Some psychotropic effects of phenibut and phenylpyrrolidone. Trudy Volgogradskogo Gosudarstvennogo Meditsinskogo Instituta (1979), 31(3), 63-6.

[2]. Kovalev GV, et al. Effect of γ-aminobutyric acid derivatives on baroreceptor reflexes in nonanesthetized animals. Russian. 1980, (VINITI 1311-80), 10 pp.

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	6.2035 mL	31.0174 mL	62.0347 mL	155.0869 mL
	5 mM	1.2407 mL	6.2035 mL	12.4069 mL	31.0174 mL
	10 mM	0.6203 mL	3.1017 mL	6.2035 mL	15.5087 mL
	15 mM	0.4136 mL	2.0678 mL	4.1356 mL	10.3391 mL
	20 mM	0.3102 mL	1.5509 mL	3.1017 mL	7.7543 mL
	25 mM	0.2481 mL	1.2407 mL	2.4814 mL	6.2035 mL
	30 mM	0.2068 mL	1.0339 mL	2.0678 mL	5.1696 mL
	40 mM	0.1551 mL	0.7754 mL	1.5509 mL	3.8772 mL
	50 mM	0.1241 mL	0.6203 mL	1.2407 mL	3.1017 mL
	60 mM	0.1034 mL	0.5170 mL	1.0339 mL	2.5848 mL
	80 mM	0.0775 mL	0.3877 mL	0.7754 mL	1.9386 mL
	100 mM	0.0620 mL	0.3102 mL	0.6203 mL	1.5509 mL

1-Phenyl-2-pyrrolidinone Related Classifications

Neurological Disease

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.

Keywords:

1-Phenyl-2-pyrrolidinone4641-57-01-Phenylpyrrolidin-2-oneGABA ReceptorGamma-aminobutyric acid Receptorγ-Aminobutyric acid ReceptorInhibitorinhibitorinhibit

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