LMK-235

Alias: LMK 235; LMK235; LMK-235
Cat No.:V0266 Purity: =98.77%
LMK-235 (LMK235) is a novel, potent and selective inhibitor of HDAC4 and HDAC5 (histone deacetylase) with potential antitumor activity.
LMK-235 Chemical Structure CAS No.: 1418033-25-6
Product category: HDAC
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
100mg
250mg
Other Sizes
Official Supplier of:
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text

 

  • Business Relationship with 5000+ Clients Globally
  • Major Universities, Research Institutions, Biotech & Pharma
  • Citations by Top Journals: Nature, Cell, Science, etc.
Top Publications Citing lnvivochem Products
InvivoChem's LMK-235 has been cited by 1 publication
Purity & Quality Control Documentation

Purity: =98.77%

Product Description

LMK-235 (LMK235) is a novel, potent and selective inhibitor of HDAC4 and HDAC5 (histone deacetylase) with potential antitumor activity. Its IC50 values for HDAC4/5 inhibition are 11.9 nM and 4.2 nM, respectively. For HDAC6, HDAC1, HDAC2, HDAC11, and HDAC8, its IC50 values are 55.7 nM, 320 nM, 881 nM, 852 nM, and 1278 nM, in that order. LMK235 demonstrated comparable results to vorinostat in terms of cellular HDAC inhibition in a pan-HDAC assay, but it exhibited more potent cytotoxic effects on the human cancer cell lines A2780, Cal27, Kyse510, and MDA-MB231. While vorinostat and TSA inhibit HDAC4 and HDAC5 in the higher micromolar range, LMK235 exhibits nanomolar inhibition of these enzymes. Whereas HDAC4 and HDAC5, which are inhibited with low nanomolar IC50 values, are preferred by LMK235, which displayed a novel HDAC isoform selectivity profile in contrast to vorinostat.

Biological Activity I Assay Protocols (From Reference)
Targets
HDAC5 ( IC50 = 4.22 nM ); HDAC4 ( IC50 = 11.9 nM ); HDAC6 ( IC50 = 55.7 nM ); HDAC1 ( IC50 = 320 nM ); HDAC11 ( IC50 = 852 nM ); HDAC2 ( IC50 = 881 nM ); HDAC8 ( IC50 = 1278 nM )
ln Vitro

In vitro activity: LMK-235 exhibits cytotoxic activity with IC50s of 0.49 μM and 0.32 μM against the human ovarian cancer cell lines A2780 and A2780 CisR, respectively. With IC50s of 0.65 μM and 0.32 μM, respectively, LMK-235 inhibits HDAC in the A2780 and A2780 CisR cell lines. In all cell lines, LMK-235 results in a greater reduction in cell viability than cisplatin plus vorinostat combined[1]. BC cell proliferation is inhibited by LMK-235 (0, 0.625, 1.25, 2.5, 5, 10, and 20 μM) in a manner that is dependent on both dose and time. Additionally, BC cell growth is inhibited by LMK-235 (0-800 nM). In addition, LMK-235 and bortezomib work in concert in BC cell lines[2]. In Cdkl5 -/Y NPCs, LMK235 (2, 20?nM) substantially restores the decreased number of neurons produced by Cdkl5 -/Y NPCs while also decreasing HDAC4 nuclear accumulation. Moreover, in Cdkl5 -/Y NPCs, LMK235 reinstates histone 3 acetylation. The BDNF isoform IV is significantly increased by LMK235, while the isoforms I and II are unaffected[3].

ln Vivo
LMK235 (5 and 20 mg/kg) restores postmitotic granule neurons' maturation and survival in Cdkl5 -/Y mice. In Cdkl5 -/Y mice, LMK235 also promotes the development of synapses in the dentate gyrus and hippocampal regions. Additionally, in Cdkl5 -/Y mice, LMK235 restores hippocampal-dependent learning and memory[3].
Enzyme Assay
In accordance with the company's standard operating procedure, the in vitro inhibitory activity of compounds against seven human HDAC isoforms (1, 2, 4 C2A, 5 C2A, 6, 8, and 11) is assessed using a fluorescent-based assay. Using three-fold serial dilution and ten distinct concentrations, starting at 10 μM, the IC50 values are calculated. Vorinostat and TSA are the reference compounds.
Cell Assay
Improved MTT assay is used to determine the rate of cell survival under test substance action. Based on the ability of living cells to convert yellow 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) into violet formazan, which can be measured spectrophotometrically, the assay is implemented. Briefly put, 96-well plates are seeded with 5000, 7000, 8000, and 10,000 cells/well of A2780, Cal27, Kyse510, and MDA-MB-231 cell lines. Cells are exposed to higher concentrations of the test compounds after a 24-hour period. Following a 72-hour incubation period, the addition of MTT solution (5 mg/mL in phosphate buffered saline) is used to assess cell survival. In DMSO, the formazan precipitate dissolves. The absorbance in a FLUOstar microplate reader is measured at 544 and 690 nm[1].
Animal Protocol
C57BL/6-BALB/c mice
20 mg/kg
i.p.
References

[1]. Histone deacetylase (HDAC) inhibitors with a novel connecting unit linker region reveal a selectivity profile for HDAC4 and HDAC5 with improved activity against chemoresistant cancer cells. J Med Chem. 2013 Jan 24;56(2):427-36.

[2]. HDAC5, a potential therapeutic target and prognostic biomarker, promotes proliferation, invasion and migration in human breast cancer. Oncotarget. 2016 Jun 21;7(25):37966-37978.

[3]. HDAC4: a key factor underlying brain developmental alterations in CDKL5 disorder. Hum Mol Genet. 2016 Sep 15;25(18):3887-3907.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C15H22N2O4
Molecular Weight
294.35
Exact Mass
294.16
Elemental Analysis
C, 61.21; H, 7.53; N, 9.52; O, 21.74
CAS #
1418033-25-6
Related CAS #
1418033-25-6
Appearance
White to off-white solid powder
SMILES
CC1=CC(=CC(=C1)C(=O)NOCCCCCC(=O)NO)C
InChi Key
VRYZCEONIWEUAV-UHFFFAOYSA-N
InChi Code
InChI=1S/C15H22N2O4/c1-11-8-12(2)10-13(9-11)15(19)17-21-7-5-3-4-6-14(18)16-20/h8-10,20H,3-7H2,1-2H3,(H,16,18)(H,17,19)
Chemical Name
N-[6-(hydroxyamino)-6-oxohexoxy]-3,5-dimethylbenzamide
Synonyms
LMK 235; LMK235; LMK-235
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ~58 mg/mL (~197.0 mM)
Water: <1 mg/mL
Ethanol: ~58 mg/mL (~197.0 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (7.07 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.08 mg/mL (7.07 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

View More

Solubility in Formulation 3: ≥ 2.08 mg/mL (7.07 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


Solubility in Formulation 4: 5%DMSO+ 40%PEG300+ 5%Tween 80+ 50%ddH2O: 3.0mg/ml (10.19mM)

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.3973 mL 16.9866 mL 33.9732 mL
5 mM 0.6795 mL 3.3973 mL 6.7946 mL
10 mM 0.3397 mL 1.6987 mL 3.3973 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
/

Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
+
+
+

Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • LMK-235
    J Med Chem.2013 Jan 24;56(2):427-36.

    LMK-235

    Hyperacetylation of P. falciparum histones. (Compound 1a is LMK-235)Eur J Med Chem.2014 Jul 23;82:204-13.

  • LMK-235

    LMK-235 synergizes with bortezomib in BC cells.2016 Jun 21;7(25):37966-37978.

  • LMK-235

    LMK-235 inhibits BC cell proliferation and induces apoptosis.2016 Jun 21;7(25):37966-37978.

Contact Us Back to top