2. Cell Cycle/DNA Damage Epigenetics Anti-infection
  3. HDAC HIV
  4. PTACH

PTACH (NCH-51) is a potent HDAC inhibitor with IC50s of 48 nM, 32 nM, and 41 nM for HDAC1, HDAC4, and HDAC6, respectively. PTACH exerts potent growth inhibition against various cancer cells (EC50s of 1.1-9.1 μM) .

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PTACH Chemical Structure

PTACH Chemical Structure

CAS No. : 848354-66-5

Size Price Stock Quantity
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
Solid
1 mg USD 53 In-stock
5 mg USD 120 In-stock
10 mg USD 181 In-stock
25 mg USD 362 In-stock
50 mg USD 544 In-stock
100 mg USD 816 In-stock
200 mg   Get quote  
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Customer Review

Based on 1 publication(s) in Google Scholar

PTACH 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

View All HIV Isoform Specific Products:

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HIV HIV-1 HIV-2

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

PTACH (NCH-51) is a potent HDAC inhibitor with IC50s of 48 nM, 32 nM, and 41 nM for HDAC1, HDAC4, and HDAC6, respectively. PTACH exerts potent growth inhibition against various cancer cells (EC50s of 1.1-9.1 μM) [1][2].

IC50 & Target[1][2]

HDAC1

48 nM (IC50)

HDAC4

32 nM (IC50)

HDAC6

41 nM (IC50)

HIV-1

 

In Vitro

PTACH (compound 51) treatment elevates the levels of acetylated histone H4 and p21WAF1/CIP1 in a dose-dependent manner[1].
In cancer cell growth inhibition assay, PTACH (compound 51) shows strong activity. PTACH inhibits various cancer cells with EC50 values of 2.3 μM, 9.1 μM, 3.0 μM, 2.6 μM, 1.1 μM, 4.5 μM, 2.4 μM, 5.0 μM, and 4.5 μM for MDA-MB-231, SNB-78, HCT116, NCI-H226, LOX-IMVI, SK-OV-3, RXF-631L, St-4, and DU-145 cells, respectively[1].
PTACH (NCH-51) augments the HIV-1 production in latently infected OM10.1 cells and such reactivation is associated with a loss of HDAC1 occupancy and subsequent hyperacetylation of histones in nuc-1 at the HIV-1 promoter[2].

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

PTACH Related Antibodies

Western Blot Analysis[1]

Cell Line: HCT 116 cells
Concentration: 1 μM, 5 μM, 25 μM
Incubation Time: 8 hours
Result: Gave rise to elevated and dose-dependent levels of acetylated histone H4 and p21WAF1/CIP1.
Molecular Weight

390.56

Formula

C20H26N2O2S2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC(C)C(SCCCCCCC(NC1=NC(C2=CC=CC=C2)=CS1)=O)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (128.02 mM; Need ultrasonic; 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 2.5604 mL 12.8021 mL 25.6043 mL
5 mM 0.5121 mL 2.5604 mL 5.1209 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. 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
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Volume
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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 (6.40 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 (6.40 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: 99.65%

SDS (416 KB)

COA (243 KB) LCMS (120 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, 6 months; -20°C, 1 month. 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 2.5604 mL 12.8021 mL 25.6043 mL 64.0107 mL
5 mM 0.5121 mL 2.5604 mL 5.1209 mL 12.8021 mL
10 mM 0.2560 mL 1.2802 mL 2.5604 mL 6.4011 mL
15 mM 0.1707 mL 0.8535 mL 1.7070 mL 4.2674 mL
20 mM 0.1280 mL 0.6401 mL 1.2802 mL 3.2005 mL
25 mM 0.1024 mL 0.5121 mL 1.0242 mL 2.5604 mL
30 mM 0.0853 mL 0.4267 mL 0.8535 mL 2.1337 mL
40 mM 0.0640 mL 0.3201 mL 0.6401 mL 1.6003 mL
50 mM 0.0512 mL 0.2560 mL 0.5121 mL 1.2802 mL
60 mM 0.0427 mL 0.2134 mL 0.4267 mL 1.0668 mL
80 mM 0.0320 mL 0.1600 mL 0.3201 mL 0.8001 mL
100 mM 0.0256 mL 0.1280 mL 0.2560 mL 0.6401 mL
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PTACH 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:

PTACH848354-66-5NCH-51NCH51NCH 51HDACHIVHistone deacetylasesHuman immunodeficiency virusAnti-cancerp21WAF1/CIP1SAHAHIV-1hyperacetylationInhibitorinhibitorinhibit

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