1. Immunology/Inflammation
  2. COX
  3. Fenclozic acid

Fenclozic acid  (Synonyms: ICI-54450; Acidum fenclozicum; Mialex)

Cat. No.: HY-101432 Purity: 99.52%
Handling Instructions Technical Support

Fenclozic acid (ICI-54450) is an orally active anti-inflammatory, analgesic, and antipyretic agent. Fenclozic acid exhibits anti-inflammatory activity in Edadjuvant-induced arthritis and Carrageenin-induced oedema in rats. Fenclozic acid can be used for the research of arthritis.

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

Fenclozic acid

Fenclozic acid Chemical Structure

CAS No. : 17969-20-9

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
In-stock
Solution
10 mM * 1 mL in DMSO In-stock
Solid
5 mg In-stock
10 mg In-stock
25 mg In-stock
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Based on 1 publication(s) in Google Scholar

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Description

Fenclozic acid (ICI-54450) is an orally active anti-inflammatory, analgesic, and antipyretic agent. Fenclozic acid exhibits anti-inflammatory activity in Edadjuvant-induced arthritis and Carrageenin-induced oedema in rats. Fenclozic acid can be used for the research of arthritis[1][2][3].

Cellular Effect
Cell Line Type Value Description References
Sf21 IC50
> 1000 μM
Compound: Fenclozic acid
Inhibition of Sprague-Dawley rat Bsep expressed in plasma membrane vesicles of Sf21 cells assessed as inhibition of ATP-dependent [3H]taurocholate uptake
Inhibition of Sprague-Dawley rat Bsep expressed in plasma membrane vesicles of Sf21 cells assessed as inhibition of ATP-dependent [3H]taurocholate uptake
[PMID: 21965623]
Sf21 IC50
> 1000 μM
Compound: Fenclozic acid
Inhibition of human BSEP expressed in plasma membrane vesicles of Sf21 cells assessed as inhibition of ATP-dependent [3H]taurocholate uptake
Inhibition of human BSEP expressed in plasma membrane vesicles of Sf21 cells assessed as inhibition of ATP-dependent [3H]taurocholate uptake
[PMID: 21965623]
In Vitro

Fenclozic acid (0.5-5 mM) is not significantly metabolized by isolated rat duodenal mucosal whole cells or homogenates, with <5% converted to a decarboxylated derivative[1].

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

In Vivo

Fenclozic acid (100 mg/kg; p.o.; two doses 15 hours apart; or daily for 6 days) increases rat liver tryptophan pyrrolase activity by approximately three-fold[1].
Fenclozic acid (2.5-50 mg/kg; p.o.; daily; 14 days) exhibits anti-inflammatory activity in developing and establish edadjuvant-induced arthritis in rats[2].
Fenclozic acid (10, 30, and 90 mg/kg; p.o.; single dose) exhibits anti-inflammatory activity in Carrageenin-induced oedema in rats[2].
Fenclozic acid (25-100 mg/kg; p.o.; single dose) exhibits antipyretic activity in rats[2].

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

Animal Model: Mature MRC-hooded rats (200-350g)[1]
Dosage: 100 mg/kg
Administration: p.o.; two doses 15 hours apart; or daily for 6 days
Result: Increased tryptophan pyrrolase activity from a control level of 4.4 units/g liver to 13.7 units/g liver (two-dose regime).
Increased tryptophan pyrrolase activity from a control level of 4.4 units/g liver to 14.0 units/g liver (six-day daily regime).
Achieved an approximate three-fold increase in enzyme activity regardless of dose schedule.
Animal Model: Male Alderley Park strain I (200 g) with arthritis induced by Adjuvant[2]
Dosage: 2.5; 5; 10; 20; 25; 45; 50 mg/kg
Administration: p.o.; daily; 14 days (starting 1 day before adjuvant injection)
Result: Produced 41% inhibition of injected foot thickness increase on day 3 and 53% inhibition on day 14 at 20 mg/kg.
Associated with improved body weight gain compared to untreated controls.
Produced a dose-dependent decrease in foot thickness of both injected and non-injected hind feet over 14 days of treatment.
Animal Model: Male Alderley Park strain I (200 g) with oedema induced by Carrageenin[2]
Dosage: 10; 30; 90 mg/kg
Administration: p.o.; single dose; 3 hours before Carrageenin injection
Result: Produced a dose-dependent reduction in carrageenin-induced foot swelling.
Animal Model: Male Alderley Park strain I (200 g) intravenously injected with Pertussis vaccine B.P.
[2]
Dosage: 25; 50; 100 mg/kg
Administration: p.o.; single dose; immediately before Pertussis vaccine injection
Result: Completely prevented the pyrogen-induced increase in body temperature at 100 mg/kg.
Partially suppressed the temperature rise at 50 mg/kg and 25 mg/kg doses.
Molecular Weight

253.70

Formula

C11H8ClNO2S

CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

O=C(O)CC1=CSC(C2=CC=C(Cl)C=C2)=N1

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 (394.17 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.9417 mL 19.7083 mL 39.4166 mL
5 mM 0.7883 mL 3.9417 mL 7.8833 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)

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: ≥ 2.5 mg/mL (9.85 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.
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: 99.52%

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, 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.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.9417 mL 19.7083 mL 39.4166 mL 98.5416 mL
5 mM 0.7883 mL 3.9417 mL 7.8833 mL 19.7083 mL
10 mM 0.3942 mL 1.9708 mL 3.9417 mL 9.8542 mL
15 mM 0.2628 mL 1.3139 mL 2.6278 mL 6.5694 mL
20 mM 0.1971 mL 0.9854 mL 1.9708 mL 4.9271 mL
25 mM 0.1577 mL 0.7883 mL 1.5767 mL 3.9417 mL
30 mM 0.1314 mL 0.6569 mL 1.3139 mL 3.2847 mL
40 mM 0.0985 mL 0.4927 mL 0.9854 mL 2.4635 mL
50 mM 0.0788 mL 0.3942 mL 0.7883 mL 1.9708 mL
60 mM 0.0657 mL 0.3285 mL 0.6569 mL 1.6424 mL
80 mM 0.0493 mL 0.2464 mL 0.4927 mL 1.2318 mL
100 mM 0.0394 mL 0.1971 mL 0.3942 mL 0.9854 mL
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  • 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.

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