A-205804

Cat. No.: HY-100226 Purity: 98.10%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

A-205804 is an orally bioavailable, potent and selective lead inhibitor of E-selectin and ICAM-1 expression, with an IC₅₀ of 20 nM and 25 nM for E-selectin and ICAM-1, respectively. A-205804 can be used in the research of chronic inflammatory diseases.

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

A-205804 Chemical Structure

CAS No. : 251992-66-2

Size	Price	Stock	Quantity
Solid + Solvent
10 mM * 1 mL in DMSO ready for reconstitution	USD 82	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	USD 82	In-stock	Estimated Time of Arrival: December 31
Solid
5 mg	USD 75	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 121	In-stock	Estimated Time of Arrival: December 31
50 mg	USD 484	In-stock	Estimated Time of Arrival: December 31
100 mg		Get quote
200 mg		Get quote

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Biological Activity
Purity & Documentation
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Description

IC₅₀ & Target

IC50: 20 nM (E-selectin), 25 nM (ICAM-1)^[1]

In Vitro

A-205804 exhibits Cellular Toxicities for HUVEC with an IC₅₀ of? 152 μM^[1].
? A-205804 is an effective inhibitor of cell-cell adhesion in an in vitro flow experiment, demonstrating relevance in a model physiological system^[1].

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

In Vivo

A-205804 (5 mg/kg; p.o.) shows a half-life of 1 hour for rat^[1].
? A-205804 (10 mg/kg; p.o.; 3 times per week; for 2 weeks) attenuates the E-selectin expression on the endothelial vascular niche cells in mice^[2].

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

Animal Model:	C57BL/6 mice^[2]
Dosage:	10 mg/kg
Administration:	Oral administration, 3 times per week, for 2 weeks
Result:	Efficiently decreased the expression of E-selectin on the endothelial vascular niche cells

Animal Model:	Rat^[1]
Dosage:	5 mg/kg (Pharmacokinetic Analysis)
Administration:	Oral administration
Result:	t_1/2 = 1 hour

Molecular Weight

300.40

Formula

C₁₅H₁₂N₂OS₂

CAS No.

251992-66-2

Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C(C(S1)=CC2=C1C=NC=C2SC3=CC=C(C)C=C3)N

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 : 100 mg/mL (332.89 mM; ultrasonic and warming and heat to 60°C; 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	3.3289 mL	16.6445 mL	33.2889 mL
5 mM	0.6658 mL	3.3289 mL	6.6578 mL
10 mM	0.3329 mL	1.6644 mL	3.3289 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)

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

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 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (6.92 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.
Protocol 2

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.08 mg/mL (6.92 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 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 (20.8 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: 98.12%

Select Batch:

Data Sheet (275 KB) SDS (393 KB)

COA (250 KB) HNMR (186 KB) LCMS (111 KB)

Handling Instructions (2659 KB)

Complete Stock Solution Preparation Table

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

DMSO	1 mM	3.3289 mL	16.6445 mL	33.2889 mL	83.2224 mL
	5 mM	0.6658 mL	3.3289 mL	6.6578 mL	16.6445 mL
	10 mM	0.3329 mL	1.6644 mL	3.3289 mL	8.3222 mL
	15 mM	0.2219 mL	1.1096 mL	2.2193 mL	5.5482 mL
	20 mM	0.1664 mL	0.8322 mL	1.6644 mL	4.1611 mL
	25 mM	0.1332 mL	0.6658 mL	1.3316 mL	3.3289 mL
	30 mM	0.1110 mL	0.5548 mL	1.1096 mL	2.7741 mL
	40 mM	0.0832 mL	0.4161 mL	0.8322 mL	2.0806 mL
	50 mM	0.0666 mL	0.3329 mL	0.6658 mL	1.6644 mL
	60 mM	0.0555 mL	0.2774 mL	0.5548 mL	1.3870 mL
	80 mM	0.0416 mL	0.2081 mL	0.4161 mL	1.0403 mL
	100 mM	0.0333 mL	0.1664 mL	0.3329 mL	0.8322 mL

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:

A-205804251992-66-2A205804A 205804Inhibitorinhibitorinhibit

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