2. Epigenetics
  3. Epigenetic Reader Domain
  4. OF-1

OF-1 is a potent pan-BRPF bromodomain (BRD) inhibitor, with IC50 values of 270 nM, 1.2 μM for TRIM24 and BRPF1B, respectively.

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

OF-1 Chemical Structure

OF-1 Chemical Structure

CAS No. : 919973-83-4

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 112 In-stock
Solution
10 mM * 1 mL in DMSO USD 112 In-stock
Solid
5 mg USD 102 In-stock
10 mg USD 162 In-stock
25 mg USD 324 In-stock
50 mg USD 520 In-stock
100 mg USD 800 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Customer Review

Based on 3 publication(s) in Google Scholar

OF-1 Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

OF-1 is a potent pan-BRPF bromodomain (BRD) inhibitor, with IC50 values of 270 nM, 1.2 μM for TRIM24 and BRPF1B, respectively[1][2].

In Vitro

OF-1 (1 μM and 2 μM, 0, 1, 2, and 3 days) causes significant reductions in the number of multinucleated tartrate-resistant acid phosphatase (TRAP) positive cells[1].
OF-1 is the only inhibitor to completely suppress the fusion into multinucleated "osteoclast-like" cells[1].

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

OF-1 Related Antibodies

Cell Viability Assay[1]

Cell Line: Murine BMCs during differentiation with 10 ng/mL RANKL.
Concentration: 1 μM and 2 μM.
Incubation Time: 0, 1, 2, and 3 days.
Result: Particularly strong at day 2 after RANKL-induced differentiation.
Molecular Weight

440.31

Formula

C17H18BrN3O4S
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=S(C1=CC=C(Br)C=C1C)(NC2=C(OC)C=C(N3C)C(N(C)C3=O)=C2)=O
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 : 13 mg/mL (29.52 mM; Need ultrasonic and warming; 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 2.2711 mL 11.3556 mL 22.7113 mL
5 mM 0.4542 mL 2.2711 mL 4.5423 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)

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 (5.68 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% Corn Oil

    Solubility: ≥ 2.5 mg/mL (5.68 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).
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: 98.28%

SDS (419 KB)

COA (254 KB) HNMR (275 KB) LCMS (258 KB)

Handling Instructions (2659 KB)
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, 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.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.2711 mL 11.3556 mL 22.7113 mL 56.7782 mL
5 mM 0.4542 mL 2.2711 mL 4.5423 mL 11.3556 mL
10 mM 0.2271 mL 1.1356 mL 2.2711 mL 5.6778 mL
15 mM 0.1514 mL 0.7570 mL 1.5141 mL 3.7852 mL
20 mM 0.1136 mL 0.5678 mL 1.1356 mL 2.8389 mL
25 mM 0.0908 mL 0.4542 mL 0.9085 mL 2.2711 mL
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OF-1 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:

OF-1919973-83-4OF1OF 1Epigenetic Reader DomainInhibitorinhibitorinhibit

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