2. Immunology/Inflammation Metabolic Enzyme/Protease
  3. COX Lipoxygenase Phospholipase
  4. LY 178002

LY 178002 is a potent inhibitor of 5-lipoxygenase (5-LPO), phospholipase A2, with IC50 of 0.6 μM for 5-lipoxygenase, inhibits cellular production of LTB4 by human polymorphonuclear leukocytes, and shows relatively weak inhibition on cyclooxygenase.

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LY 178002

LY 178002 Chemical Structure

CAS No. : 107889-32-7

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
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10 mg In-stock
25 mg In-stock
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LY 178002 Related Antibodies

Top Publications Citing Use of Products

View All COX Isoform Specific Products:

View All Isoforms
COX COX-1 COX-2 COX-3

View All Lipoxygenase Isoform Specific Products:

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5-LOX 12-LOX 15-LOX

View All Phospholipase Isoform Specific Products:

View All Isoforms
Phospholipase A PLD Phospholipase C

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

LY 178002 is a potent inhibitor of 5-lipoxygenase (5-LPO), phospholipase A2, with IC50 of 0.6 μM for 5-lipoxygenase, inhibits cellular production of LTB4 by human polymorphonuclear leukocytes, and shows relatively weak inhibition on cyclooxygenase.

IC50 & Target[1]

5-LPO

0.6 μM (IC50)

PLA2

6.3 μM (IC50)

FCO

4.2 μM (IC50)

Cyclooxygenase

 

In Vitro

LY178002 inhibits the generation of LTB4, PLA2 and FCO with IC50s of 0.1, 6.3 and 4.2 μM [1].

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

LY 178002 Related Antibodies
In Vivo

LY 178002 (50 mg/kg) inhibits soft tissue swelling in the uninjected paw by 81%, and inhibits bone damage in rats. The minimum effective dose for LY178002 is 10 mg/kg p.o. In the established FCA model LY178002 at 50 mg/kg p.o. inhibits the uninjected paw swelling by 75%[1].

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

319.46

Formula

C18H25NO2S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C1NCS/C1=C/C2=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C2
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (313.03 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 3.1303 mL 15.6514 mL 31.3028 mL
5 mM 0.6261 mL 3.1303 mL 6.2606 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 (7.83 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 (7.83 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.
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
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 3.1303 mL 15.6514 mL 31.3028 mL 78.2571 mL
5 mM 0.6261 mL 3.1303 mL 6.2606 mL 15.6514 mL
10 mM 0.3130 mL 1.5651 mL 3.1303 mL 7.8257 mL
15 mM 0.2087 mL 1.0434 mL 2.0869 mL 5.2171 mL
20 mM 0.1565 mL 0.7826 mL 1.5651 mL 3.9129 mL
25 mM 0.1252 mL 0.6261 mL 1.2521 mL 3.1303 mL
30 mM 0.1043 mL 0.5217 mL 1.0434 mL 2.6086 mL
40 mM 0.0783 mL 0.3913 mL 0.7826 mL 1.9564 mL
50 mM 0.0626 mL 0.3130 mL 0.6261 mL 1.5651 mL
60 mM 0.0522 mL 0.2609 mL 0.5217 mL 1.3043 mL
80 mM 0.0391 mL 0.1956 mL 0.3913 mL 0.9782 mL
100 mM 0.0313 mL 0.1565 mL 0.3130 mL 0.7826 mL
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LY 178002 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:

LY 178002107889-32-7LY178002LY-178002COXLipoxygenasePhospholipaseCyclooxygenaseLOXInhibitorinhibitorinhibit

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