1. Vitamin D Related/Nuclear Receptor Apoptosis
  2. Estrogen Receptor/ERR Apoptosis
  3. Avobenzone

Avobenzone, a dibenzoylmethane compound, is one of the most widely used filters in sunscreens for skin photoprotection in the UVA band. Avobenzone is an endocrine disruptor that directly binds to estrogen receptor β and acts as an estrogen agonist.

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Avobenzone Chemical Structure

Avobenzone Chemical Structure

CAS No. : 70356-09-1

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10 mM * 1 mL in DMSO
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Description

Avobenzone, a dibenzoylmethane compound, is one of the most widely used filters in sunscreens for skin photoprotection in the UVA band. Avobenzone is an endocrine disruptor that directly binds to estrogen receptor β and acts as an estrogen agonist[1][2].

In Vitro

Avobenzone (EC50=14.1 μM) significantly promots adipogenesis in hBM-MSCs as its positive control obesogenic chemicals. Avobenzone (10 μM) significantly up-regulates mRNA levels of PPARγ during adipogenesis in hBM-MSCs[2].
Avobenzone (1-50 μM; 48 hours) inhibits proliferative activities of human trophoblast cells[3].
Avobenzone (1-50 μM; 48 hours) induces apoptosis in HTR8/SVneo cells[3].
Avobenzone only shows weak ERa agonism and weak AR antagonism[4].

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

Apoptosis Analysis[3]

Cell Line: HTR8/SVneo cells
Concentration: 1-50 μM
Incubation Time: 48 hours
Result: Inhibited proliferative activities of HTR8/SVneo cells.
Clinical Trial
Molecular Weight

310.39

Formula

C20H22O3

CAS No.
Unlabeled CAS

Appearance

Solid

Color

White to off-white

SMILES

O=C(C1=CC=C(C(C)(C)C)C=C1)CC(C2=CC=C(OC)C=C2)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 50 mg/mL (161.09 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.2218 mL 16.1088 mL 32.2175 mL
5 mM 0.6444 mL 3.2218 mL 6.4435 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 (protect from light, stored under nitrogen). 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    90% (20% SBE-β-CD in Saline)

    Solubility: 2.5 mg/mL (8.05 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (8.05 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 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 (25.0 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)

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).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

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: ≥98.0%

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 (protect from light, stored under nitrogen). 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 3.2218 mL 16.1088 mL 32.2175 mL 80.5438 mL
5 mM 0.6444 mL 3.2218 mL 6.4435 mL 16.1088 mL
10 mM 0.3222 mL 1.6109 mL 3.2218 mL 8.0544 mL
15 mM 0.2148 mL 1.0739 mL 2.1478 mL 5.3696 mL
20 mM 0.1611 mL 0.8054 mL 1.6109 mL 4.0272 mL
25 mM 0.1289 mL 0.6444 mL 1.2887 mL 3.2218 mL
30 mM 0.1074 mL 0.5370 mL 1.0739 mL 2.6848 mL
40 mM 0.0805 mL 0.4027 mL 0.8054 mL 2.0136 mL
50 mM 0.0644 mL 0.3222 mL 0.6444 mL 1.6109 mL
60 mM 0.0537 mL 0.2685 mL 0.5370 mL 1.3424 mL
80 mM 0.0403 mL 0.2014 mL 0.4027 mL 1.0068 mL
100 mM 0.0322 mL 0.1611 mL 0.3222 mL 0.8054 mL
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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.

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Avobenzone
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HY-B0316
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