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Liarozole

Cat No.:V24097 Purity: ≥98%
Liarozole (R75251; R85246) is an imidazole analogue and orally bioactive retinoic acid (RA) metabolism blocker (RAMBA).
Liarozole
Liarozole Chemical Structure CAS No.: 115575-11-6
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
50mg
Other Sizes

Other Forms of Liarozole:

  • Liarozole dihydrochloride
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Liarozole (R75251; R85246) is an imidazole analogue and orally bioactive retinoic acid (RA) metabolism blocker (RAMBA). Liarozole inhibits retinoic acid-dependent cytochrome P450 (CYP26) 4-hydroxylation (IC50=7 μM), resulting in increased tissue retinoic acid levels. Liarozole has anti-tumor properties.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
Cell growth in MCF-7 cells is inhibited by rizazole (0.01~10 μM; 9 days) [3]. Chondrogenesis in mesenchymal cells is totally inhibited by liarozole (1 μM; 4 days) [4].
ln Vivo
Estrogen-stimulated vaginal keratosis is reversed by rizazone (5–20 mg/kg; oral; 3 days) [5]. The tumor burden is greatly reduced by rizazol (40 mg/kg; oral; 21 days) [6].
Cell Assay
Cell proliferation experiment [3]
Cell Types: MCF-7 cell
Tested Concentrations: 0.01~10 μM
Incubation Duration: 9 days
Experimental Results: 35% inhibitory effect on cell proliferation at 10 μM. Cell differentiation analysis[4]
Cell Types: Mesenchymal cells
Tested Concentrations: 1 μM
Incubation Duration: 4 days
Experimental Results: Complete inhibition of chondrogenesis.
Animal Protocol
Animal/Disease Models: ovariectomized rats [5]
Doses: 5~20 mg/kg
Route of Administration: Po; 3-day
Experimental Results: Reverse vaginal keratinization caused by estrogen stimulation.

Animal/Disease Models: SCID (severe combined immunodeficient) mouse [6]
Doses: 40 mg/kg
Route of Administration: Po; 21-day
Experimental Results: Inhibition of tumor growth and survival.
References

[1]. The effects of oral liarozole on epidermal proliferation and differentiation in severe plaque psoriasis are comparable with those of acitretin. Br J Dermatol. 1998;139(3):380-389.

[2]. Oral treatment of ichthyosis by the cytochrome P-450 inhibitor liarozole. Br J Dermatol. 1997;136(1):71-75.

[3]. Effects of liarozole, a new antitumoral compound, on retinoic acid-induced inhibition of cell growth and on retinoic acid metabolism in MCF-7 human breast cancer cells. Cancer Res. 1992;52(10):2841-2846.

[4]. Liarozole markedly increases all trans-retinoic acid toxicity in mouse limb bud cell cultures: a model to explain the potency of the aromatic retinoid (E)-4-[2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthylenyl)-1-propenyl] benzo.

[5]. Liarozole, an inhibitor of retinoic acid metabolism, exerts retinoid-mimetic effects in vivo. J Pharmacol Exp Ther. 1992;261(2):773-779.

[6]. Liarozole and 13-cis-retinoic acid anti-prostatic tumor activity [published correction appears in Cancer Res 1993 Dec 1;53(23):5831]. Cancer Res. 1993;53(13):3073-3077.

Additional Infomation
Liarozole is a member of benzimidazoles.
Liarozole has been used in trials studying the treatment of Ichthyosis, Lamellar.
Liarozole is an orally-active benzimidazole derivative with potential antineoplastic activity. As a retinoic acid metabolism blocking agent, liarozole inhibits cytochrome P450-dependent all-trans-retinoic acid (ATRA)-4-hydroxylase, resulting in an increase in endogenous ATRA production, inhibition of cell proliferation, and induction of cell differentiation. This agent also inhibits aromatase, the enzyme that catalyzes the final, rate-limiting step in estrogen biosynthesis.
See also: Liarozole Hydrochloride (annotation moved to).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C17H13N4CL.HCL
Molecular Weight
345.22586
Exact Mass
308.083
CAS #
115575-11-6
Related CAS #
Liarozole dihydrochloride;1883548-96-6
PubChem CID
60652
Appearance
Off-white to light yellow solid powder
Density
1.36g/cm3
Boiling Point
578.2ºC at 760mmHg
Flash Point
303.5ºC
Vapour Pressure
9.2E-13mmHg at 25°C
LogP
4.05
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
3
Heavy Atom Count
22
Complexity
380
Defined Atom Stereocenter Count
0
InChi Key
UGFHIPBXIWJXNA-UHFFFAOYSA-N
InChi Code
InChI=1S/C17H13ClN4/c18-14-3-1-2-12(8-14)17(22-7-6-19-11-22)13-4-5-15-16(9-13)21-10-20-15/h1-11,17H,(H,20,21)
Chemical Name
6-[(3-chlorophenyl)-imidazol-1-ylmethyl]-1H-benzimidazole
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

Note: This product requires protection from light (avoid light exposure) during transportation and storage.
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 : ~100 mg/mL (~323.88 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.10 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 25.0 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: ≥ 2.5 mg/mL (8.10 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 25.0 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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (8.10 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 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.8966 mL 14.4831 mL 28.9662 mL
5 mM 0.5793 mL 2.8966 mL 5.7932 mL
10 mM 0.2897 mL 1.4483 mL 2.8966 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

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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?
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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:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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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.)
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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.

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