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Arachidonic acid Immunology & Inflammation related chemical

Name: Arachidonic acid
Brand: Selleck Chemicals
SKU: S6185
Availability: InStock
Rating: 5 (2 reviews)

Cat.No.S6185

Arachidonic acid (Arachidonate) is an unsaturated, essential fatty acid found in animal and human fat as well as in the liver, brain, and glandular organs. It is a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes.,

Chemical Structure

Molecular Weight: 304.47

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Quality Control

Batch: Purity: 99.75%

99.75

Related Targets	PD-1/PD-L1 CXCR STING AhR CD markers Interleukins Anti-infection Antioxidant COX Histamine Receptor
Other Immunology & Inflammation related Inhibitors	Cl-amidine Bestatin (Ubenimex) Bindarit (AF 2838) Tempol Tranilast GI254023X (GI4023) Sinomenine Geniposidic acid CORM-3 Germacrone

Solubility

In vitro
Batch:

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.500mg/ml (8.21mM)	Taking the 1 mL working solution as an example, add 50 μL of 50 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.500mg/ml (8.21mM)	Taking the 1 mL working solution as an example, add 50 μL of 50 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.050mg/ml (10.02mM)	Taking the 1 mL working solution as an example, add 50 μL of 61 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.500mg/ml (1.64mM)	Taking the 1 mL working solution as an example, add 50 μL of 10 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

% Tween 80

% ddH₂O

% DMSO

Calculation results:

Working concentration: mg/ml;

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

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	304.47	Formula	C₂₀H₃₂O₂	Storage (From the date of receipt)	2 years -20°C(in the dark) liquid
CAS No.	506-32-1	--		Storage (From the date of receipt)	2 years -20°C(in the dark) liquid

Read more about storage stability CAS number

Mechanism of Action

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2025-09-24)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05380401	RECRUITING	Premature	The University of Texas Health Science Center at San Antonio	2023-03-09
NCT06827873	NOT_YET_RECRUITING	Influenza Vaccine Response	Tsinghua University	2025-02
NCT06366893	UNKNOWN	Infant, Premature, Diseases	Hospital Universitari Vall d'Hebron Research Institute	2024-03-04
NCT05191823	ACTIVE_NOT_RECRUITING	Preterm Birth; Child Development	Sarah Keim	2021-12-01
NCT06274788	Not yet recruiting	Parenteral Nutrition Associated Liver Disease (PNALD)\|Essential Fatty Acid Deficiency\|Malnutrition\|Pediatric ALL	Fresenius Kabi	2024-05-01	Phase 4
NCT05987384	COMPLETED	Rabies Vaccination Reaction	Tsinghua University	2023-05-03

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Handling Instructions

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