2. Metabolic Enzyme/Protease
  3. Cytochrome P450
  4. Stiripentol

Stiripentol  (Synonyms: BCX2600)

Cat. No.: HY-103392 Purity: 99.96%
SDS COA Handling Instructions

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Stiripentol (STP) is an anticonvulsant agent, which can inhibit N-demethylation of CLB to NCLB mediatated by CYP3A4 (noncompetitively) and CYP2C19 (competitively) with Ki of 1.59±0.07 and 0.516±0.065 μM and IC50 of 1.58 and 3.29 μM, respectively.

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

Stiripentol Chemical Structure

Stiripentol Chemical Structure

CAS No. : 49763-96-4

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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Solution
10 mM * 1 mL in DMSO USD 66 In-stock
Solid
5 mg USD 60 In-stock
10 mg USD 96 In-stock
25 mg USD 192 In-stock
50 mg USD 264 In-stock
100 mg USD 444 In-stock
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Customer Review

Based on 3 publication(s) in Google Scholar

Other Forms of Stiripentol:

Stiripentol Related Antibodies

Top Publications Citing Use of Products

View All Cytochrome P450 Isoform Specific Products:

View All Isoforms
CYP1 CYP2 CYP3 CYP4 CYP11 CYP17 Aromatase/CYP19A1 CYP26 CYP51 CYP1A2 CYP2D6 CYP2C9 CYP2C19 CYP3A4 CYP17A1

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Stiripentol (STP) is an anticonvulsant agent, which can inhibit N-demethylation of CLB to NCLB mediatated by CYP3A4 (noncompetitively) and CYP2C19 (competitively) with Ki of 1.59±0.07 and 0.516±0.065 μM and IC50 of 1.58 and 3.29 μM, respectively.

IC50 & Target

CYP2

 

CYP3

 

In Vitro

Stiripentol (STP) is an anticonvulsant agent, which can inhibit N-demethylation of CLB to N-desmethylclobazam (NCLB) mediated by CYP3A4 (noncompetitively) and CYP2C19 (competitively). The inhibition of CLB demethylation by Stiripentol (STP) is best described by a noncompetitive inhibition model with apparent Ki=1.6 μM for the cDNA-expressing CYP3A4 and by a competitive inhibition model with Ki=0.52 μM for the cDNA-expressing CYP2C19. Formation of OH-NCLB from NCLB by cDNA-expressing CYP2C19 is competitively inhibited by Stiripentol (STP) with a Ki=0.14 μM[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Stiripentol Related Antibodies
In Vivo

In mice treating with Stiripentol (STP) monotherapy, the difference between BT1 (39.67±1.09°C) and BT2 (41.32±1.05°C) reaches statistical significance (t=3.097, p<0.05). The difference in BT2 between Stiripentol (STP) monotherapy and CLB monotherapy is statistically significant (t=2.615, p<0.05). In mice treating with Stiripentol (STP)+CLB combination therapy, the difference between BT1 (40.18±0.58°C) and BT2 (43.03±0.49°C) reaches statistical significance (t=10.44, p<0.01)[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Clinical Trial
Molecular Weight

234.29

Formula

C14H18O3
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC(C)(C)C(O)/C=C/C1=CC=C(OCO2)C2=C1
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 150 mg/mL (640.23 mM; Need ultrasonic and warming; 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 4.2682 mL 21.3411 mL 42.6821 mL
5 mM 0.8536 mL 4.2682 mL 8.5364 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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: ≥ 2.08 mg/mL (8.88 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: ≥ 2.08 mg/mL (8.88 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  15% Cremophor EL    85% Saline

    Solubility: 25 mg/mL (106.71 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

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: 99.96%

SDS (392 KB)

COA (246 KB) LCMS (94 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

The inhibition constants (apparent Ki) of Stiripentol (STP) for CLB demethylation by CYP3A4 and CYP2C19 are determined using various concentrations of CLB (2, 10, 20, 40, 60, and 100 μM) with increasing concentrations of Stiripentol (STP) (0, 0.5, 1, 2, and 5 μM). Concerning NCLB hydroxylation by CYP2C19, the apparent Ki is similarly determined with different concentrations of NCLB (1.5, 4, 6, 8, 12, and 14 μM) and STP (0, 0.1, 0.5, 1, and 2 μM). IC50 values are determined by coincubation of the substrate at concentration in the range of the therapeutic plasma concentrations (2 μM CLB or 14 μM NCLB) with increasing concentrations of Stiripentol (STP) (0.001, 0.002, 0.005, 0.01, 0.05, 0.1, 0.25, 2, 5, and 10 μM)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

Two age groups, p1M (n=18, age 4 weeks) and p5M (n=18, age 5-10 months), of Scn1aRX/+ mice are assigned in this experiment. Both groups are divided randomly into three subgroups (n=6), and each subgroup is administered Stiripentol (STP) (300 mg/kg) alone, CLB (6.62 mg/kg) alone, or a combination of Stiripentol (STP) (p1M; 150 mg/kg, p5M; 300 mg/kg) and CLB (6.62 mg/kg). All drugs are administered by intraperitoneal injection (i.p.) after a 48-h recovery from baseline seizure study. Blood samples are collected at 1 h and 20 min after administration of CLB or STP+CLB for measurement of plasma concentrations of CLB and N-desmethylclobazam, respectively[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 4.2682 mL 21.3411 mL 42.6821 mL 106.7054 mL
5 mM 0.8536 mL 4.2682 mL 8.5364 mL 21.3411 mL
10 mM 0.4268 mL 2.1341 mL 4.2682 mL 10.6705 mL
15 mM 0.2845 mL 1.4227 mL 2.8455 mL 7.1137 mL
20 mM 0.2134 mL 1.0671 mL 2.1341 mL 5.3353 mL
25 mM 0.1707 mL 0.8536 mL 1.7073 mL 4.2682 mL
30 mM 0.1423 mL 0.7114 mL 1.4227 mL 3.5568 mL
40 mM 0.1067 mL 0.5335 mL 1.0671 mL 2.6676 mL
50 mM 0.0854 mL 0.4268 mL 0.8536 mL 2.1341 mL
60 mM 0.0711 mL 0.3557 mL 0.7114 mL 1.7784 mL
80 mM 0.0534 mL 0.2668 mL 0.5335 mL 1.3338 mL
100 mM 0.0427 mL 0.2134 mL 0.4268 mL 1.0671 mL
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Stiripentol Related Classifications

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:

Stiripentol49763-96-4BCX2600BCX 2600BCX-2600Cytochrome P450CYPsInhibitorinhibitorinhibit

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