DTHIB

Alias: DTHIB
Cat No.:V2264 Purity: ≥98%
DTHIB is a direct and selective inhibitor of heat shock factor 1 (HSF1).
DTHIB Chemical Structure CAS No.: 897326-30-6
Product category: HSP
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
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
Purity & Quality Control Documentation

Purity: ≥98%

Product Description
DTHIB is a direct and selective inhibitor of heat shock factor 1 (HSF1). DTHIB binds to the HSF1 DNA-binding domain with Kd of 160 nM. DTHIB inhibits the HSF1 cancer gene signature (HSF1 CaSig) and selectively stimulates nuclear HSF1 degradation. DTHIB has potent anti-cancer effect and may be used in prostate cancer research.
Biological Activity I Assay Protocols (From Reference)
Targets
HSF1 (Kd = 160 nM)
ln Vitro
DTHIB (5 μM; 48 hours) treatment of C4-2 cells results in accumulation in the G1 phase and cell cycle arrest. C4-2 PCa cells enter senescence when DTHIB is stimulated[1].
DTHIB (0.5-5 μM; 48 hours) treatment decreases the steady-state protein abundance of the bona fide HSF1 targets molecular chaperones P23, HSP27, HSP70, and HSP90 in C4-2 cells[1].
DTHIB has an effect that is dose-dependent in reducing the clonal expansion of PC-3 and C4-2 PCa cells, with EC50 values of 3.0 μM and 1.2 μM, respectively[1].
DTHIB (0.5-10 μM) dose-dependently reduces the strong acute heat shock induction of the HSP70 and HSP25 molecular chaperones in mouse embryonic fibroblasts (MEFs). By lowering the steady-state transcript abundance of several molecular chaperones, DTHIB attenuates the heat shock response[1].
ln Vivo
DTHIB treatment (5 mg/kg; intraperitoneal injection; daily; for 3 weeks) potently inhibits the growth of tumors in a C4-2 xenograft mouse model[1].
Cell Assay
The HSF1 target gene expression in C4-2 Scr and shHSF1 cells treated for 36 hours with 2.5 μM DTHIB is assessed using qRT-PCR.
Animal Protocol
Nude mice (6 weeks of age) injected with C4-2 cells
5 mg/kg
Intraperitoneal injection; daily; for 3 weeks
References

[1]. Targeting therapy-resistant prostate cancer via a direct inhibitor of the human heat shock transcription factor 1. Sci Transl Med. 2020 Dec 16;12(574):eabb5647.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C13H9CLFN3O3
Molecular Weight
309.6814
Exact Mass
309.0316
Elemental Analysis
C, 50.42; H, 2.93; Cl, 11.45; F, 6.13; N, 13.57; O, 15.50
CAS #
897326-30-6
Related CAS #
897326-30-6
Appearance
Solid powder
SMILES
C1=CC(=CC=C1NC(=O)NC2=CC(=C(C=C2)Cl)[N+](=O)[O-])F
InChi Key
DWVIOMKFHSRQQM-UHFFFAOYSA-N
InChi Code
InChI=1S/C13H9ClFN3O3/c14-11-6-5-10(7-12(11)18(20)21)17-13(19)16-9-3-1-8(15)2-4-9/h1-7H,(H2,16,17,19)
Chemical Name
1-(4-chloro-3-nitrophenyl)-3-(4-fluorophenyl)urea
Synonyms
DTHIB
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: 86~100 mg/mL (277.7~322.9 mM)
Ethanol: ~17 mg/mL (~54.9 mM)
Solubility (In Vivo)
Solubility in Formulation 1: 2.08 mg/mL (6.72 mM) 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; with sonication.
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.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.2291 mL 16.1457 mL 32.2914 mL
5 mM 0.6458 mL 3.2291 mL 6.4583 mL
10 mM 0.3229 mL 1.6146 mL 3.2291 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
  • HSF1 is highly expressed in Human Prostate Cancer and is Inhibited by DTHIB. Sci Transl Med . 2020 Dec 16;12(574):eabb5647.
  • DTHIB inhibits human prostate cancer cell proliferation (A) AlamarBlue assays from 96-hour DTHIB treatment preferentially reduced the viability of the malignant prostate cancer cell lines C4–2 and PC-3, as compared to the benign prostate cell line BPH-1 (n = 5). Sci Transl Med . 2020 Dec 16;12(574):eabb5647.
  • HSF1 is highly expressed in Human Prostate Cancer and is Inhibited by DTHIB. Sci Transl Med . 2020 Dec 16;12(574):eabb5647.
Contact Us Back to top