2. Cell Cycle/DNA Damage Epigenetics
  3. HDAC
  4. ACY-738

ACY-738 is a potent, selective and orally-bioavailable HDAC6 inhibitor, with an IC50 of 1.7 nM; ACY-738 also inhibits HDAC1, HDAC2, and HDAC3, with IC50s of 94, 128, and 218 nM.

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

ACY-738 Chemical Structure

ACY-738 Chemical Structure

CAS No. : 1375465-91-0

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 132 In-stock
Solution
10 mM * 1 mL in DMSO USD 132 In-stock
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10 mg USD 216 In-stock
50 mg USD 588 In-stock
100 mg USD 780 In-stock
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Customer Review

Based on 2 publication(s) in Google Scholar

ACY-738 Related Antibodies

Top Publications Citing Use of Products

View All HDAC Isoform Specific Products:

View All Isoforms
HDAC HDAC1 HDAC2 HDAC3 HDAC4 HDAC5 HDAC6 HDAC7 HDAC8 HDAC9 HDAC10 HDAC11 HD1 HD2

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

ACY-738 is a potent, selective and orally-bioavailable HDAC6 inhibitor, with an IC50 of 1.7 nM; ACY-738 also inhibits HDAC1, HDAC2, and HDAC3, with IC50s of 94, 128, and 218 nM.

IC50 & Target[1]

HDAC6

1.7 nM (IC50)

HDAC1

94 nM (IC50)

HDAC2

128 nM (IC50)

HDAC3

218 nM (IC50)

Cellular Effect
Cell Line Type Value Description References
697 IC50
3390 nM
Compound: ACY-738
Cytotoxicity against human 697 cells after 48 hrs by CellTiter 96 aqueous one solution assay
Cytotoxicity against human 697 cells after 48 hrs by CellTiter 96 aqueous one solution assay
[PMID: 31710483]
Sf9 IC50
2 nM
Compound: ACY-738
Inhibition of recombinant full length human N-terminal GST-tagged HDAC6 expressed in baculovirus infected sf9 insect cells pretreated with compound followed by Fluor de Lys deacetylase substrate addition by fluorescence method
Inhibition of recombinant full length human N-terminal GST-tagged HDAC6 expressed in baculovirus infected sf9 insect cells pretreated with compound followed by Fluor de Lys deacetylase substrate addition by fluorescence method
[PMID: 31710483]
In Vitro

ACY-738 (2.5 μM) increases the acetylated (lysine 40) fraction of α-tubulin in RN46A-B14 cells[1]. ACY-738 (10 μM) induces cell death comparable to LBH589 and FK228[3].

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

ACY-738 Related Antibodies
In Vivo

ACY-738 (5 mg/kg) leads to significant increase in α-tubulin acetylation in whole-brain lysates. ACY-738 (50 mg/kg) fails to produce an enhancement of locomotor activity in WT mice tested in a home cage environment[1]. ACY-738 (5 mg/kg) reaches a maximum plasma concentration of 1310 ng/mL at 0.0830 h following treatment. ACY-738 (5 mg/kg BW) alters BM B cell differentiation, but shows no significant effect on IgG and C3 deposition in NZB/W mice. ACY-738 (20 mg/kg) significantly attenuates the severity of proteinuria in NZB/W F1 mice. ACY-738 (5 mg/kg) shows a significant decrease in anti-dsDNA production in NZB/W mice as they aged. ACY-738 (5, 20 mg/kg) attenuates sera IL-1β production as the NZB/W mice aged. ACY-738 (5 mg/kg) significantly reduces glomerular IL-6 and IL-10 mRNA levels by more than 50% while treatment with 20 mg/kg ACY-738 reduced IL-6 and IL-10 mRNA to non-detectable levels[2].

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

270.29

Formula

C14H14N4O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NO)C(C=N1)=CN=C1NC2(CC2)C3=CC=CC=C3
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 : ≥ 32 mg/mL (118.39 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.6997 mL 18.4986 mL 36.9973 mL
5 mM 0.7399 mL 3.6997 mL 7.3995 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: ≥ 2.08 mg/mL (7.70 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 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: ≥ 2.08 mg/mL (7.70 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.
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: 99.92%

SDS (393 KB)

COA (247 KB) LCMS (94 KB) Elemental Analysis Report (105 KB)

Handling Instructions (2659 KB)
References
Animal Administration
[2]

Mice are injected i.p. 5 days/week with the vehicle control (DMSO), ACY-738 treatment at 5 mg/kg (low-dose), or ACY-738 treatment at 20 mg/kg (high-dose) beginning at 22-weeks-of-age until euthanasia at 38 weeks-of-age. The total volume injected is 80 μL. Proteinuria and weight are measured every 2 weeks and blood is collected every four weeks for sera analysis. Proteinuria is measured by a standard semi-quantitative test using Siemens Uristix dipsticks. Results are quantified and scored as follows: dipstick reading of 0 mg/dL = 0, trace = 1, 30-100 mg/dL = 2, 100-300 mg/dL = 3, 300-2000 mg/dL = 4, and 2000 + mg/dL = 5[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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 3.6997 mL 18.4986 mL 36.9973 mL 92.4932 mL
5 mM 0.7399 mL 3.6997 mL 7.3995 mL 18.4986 mL
10 mM 0.3700 mL 1.8499 mL 3.6997 mL 9.2493 mL
15 mM 0.2466 mL 1.2332 mL 2.4665 mL 6.1662 mL
20 mM 0.1850 mL 0.9249 mL 1.8499 mL 4.6247 mL
25 mM 0.1480 mL 0.7399 mL 1.4799 mL 3.6997 mL
30 mM 0.1233 mL 0.6166 mL 1.2332 mL 3.0831 mL
40 mM 0.0925 mL 0.4625 mL 0.9249 mL 2.3123 mL
50 mM 0.0740 mL 0.3700 mL 0.7399 mL 1.8499 mL
60 mM 0.0617 mL 0.3083 mL 0.6166 mL 1.5416 mL
80 mM 0.0462 mL 0.2312 mL 0.4625 mL 1.1562 mL
100 mM 0.0370 mL 0.1850 mL 0.3700 mL 0.9249 mL
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ACY-738 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:

ACY-7381375465-91-0ACY738ACY 738HDACHistone deacetylasesInhibitorinhibitorinhibit

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