ITSA-1 (ITSA1)

Catalog No.S8323 Batch:S832301

Technical Data

Formula

C₁₃H₇Cl₂N₃O

Molecular Weight

292.12

CAS No.

200626-61-5

Solubility (25°C)*

In vitro

DMSO

58 mg/mL (198.54 mM)

Ethanol

5 mg/mL (17.11 mM)

Water

Insoluble

In vivo (Add solvents to the product individually and in order)

Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.000mg/ml (10.27mM)	Taking the 1 mL working solution as an example, add 50 μL of 60 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.450mg/ml (4.96mM)	Taking the 1 mL working solution as an example, add 50 μL of 29 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.

* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description

ITSA-1 (ITSA1) affects HDAC activity after TSA treatment but shows no activity towards other HDAC inhibitors.

Targets

HDAC ^[1]
(Cell-free assay)

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines A549 cells Concentrations 50 μM Incubation Time 17.5 h Method A549 cells ( 75% confluent) in 10-cm dishes are treated with DMSO (0.1%), TSA (500 nM), or tubacin (2 μM) for 4.5 h, and then either DMSO (0.1%) or ITSA1 (50 μM) is added for an additional 17.5 h. Samples are rinsed in PBS, trypsinized, and fixed for 2 h in 70% ethanol 30% PBS (4°C). Cells then are washed once in PBS and stored overnight in PBS (4°C).

Cell Assay:^{^[1]}

Cell lines
A549 cells
Concentrations
50 μM
Incubation Time
17.5 h
Method
A549 cells ( 75% confluent) in 10-cm dishes are treated with DMSO (0.1%), TSA (500 nM), or tubacin (2 μM) for 4.5 h, and then either DMSO (0.1%) or ITSA1 (50 μM) is added for an additional 17.5 h. Samples are rinsed in PBS, trypsinized, and fixed for 2 h in 70% ethanol 30% PBS (4°C). Cells then are washed once in PBS and stored overnight in PBS (4°C).

References

http://www.ncbi.nlm.nih.gov/pubmed/12677000

Selleck's ITSA-1 (ITSA1) has been cited by 7 publications

Gut microbial metabolite 4-hydroxybenzeneacetic acid drives colorectal cancer progression via accumulation of immunosuppressive PMN-MDSCs [ J Clin Invest, 2025, 135(11)e181243]	PubMed: 40179015
Ketogenic diet and β-hydroxybutyrate inhibit HDAC1 to preserve vascular smooth muscle cell function in thoracic aortic aneurysm [ J Adv Res, 2025, S2090-1232(25)00353-4]	PubMed: 40398746
Trichostatin A augments cell migration and epithelial-mesenchymal transition in esophageal squamous cell carcinoma through BRD4/c-Myc endoplasmic reticulum-stress pathway [ World J Gastroenterol, 2025, 31(11):103449]	PubMed: 40124272
Trichostatin A relieves anxiety-and depression-like symptoms in APP/PS1 mice [ Front Pharmacol, 2024, 15:1333235]	PubMed: 38572429
Tumour cells are sensitised to ferroptosis via RB1CC1-mediated transcriptional reprogramming [ Clin Transl Med, 2022, 12(2):e747]	PubMed: 35220675
Trichostatin A ameliorates Alzheimer's disease-related pathology and cognitive deficits by increasing albumin expression and Aβ clearance in APP/PS1 mice [ Alzheimers Res Ther, 2021, 13(1):7]	PubMed: 33397436
Epigenetic Reprogramming with Antisense Oligonucleotides Enhances the Effectiveness of Androgen Receptor Inhibition in Castration-Resistant Prostate Cancer [ Cancer Res, 2018, 78(20):5731-5740]	PubMed: 30135193

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.