Size | Price | Stock | Qty |
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100mg |
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250mg |
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500mg |
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1g |
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2g |
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10g |
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Other Sizes |
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Purity: ≥98%
Toremifene Citrate (NSC-613680; NK-622; FC-1157a; NSC613680; NSC613680; FC1157a; Fareston), the citrate salt of toremifene, is an orally bioavailable SERM (selective estrogen receptor modulator) approved for use in the treatment of advanced breast cancer. Toremifene citrate acts by antagonizing the actions of estrogen in the body. Toremifene (7.5 mM) causes approximately 60% of the cells to exhibit morphologic characteristics typical of cells undergoing programmed death, or apoptosis in human breast cancer cells. Toremifene (5-10 mM) results in elevated levels of TRPM-2 and TGF beta 1 mRNAs in in vitro or in vivo grown tumor cells.
ln Vitro |
Toremifene is a second-generation selective estrogen-receptor modulator (SERM) in development for the prevention of osteoporosis and other side effects emerging from ADT with prostate cancer[1]. The proliferation of Ac-1 cells was reduced by tamoxifen, toremifene and atamestane in vitro with IC50values of 1.8±1.3μM, 1±0.3μM and 60.4±17.2μM, respectively. The combination of toremifene + atamestane was found to be better than toremifene or atamestane alone in vitro[3].
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ln Vivo |
After that, the impact of this combination was investigated in vivo utilizing Ac-1 xenografts developed in female SCID mice with ovariectomies. Toremifene (1000μg/day), atamestane (1000μg/day), tamoxifen (100μg/day), or a combination of toremifene and atamestane were injected into the mice. According to the findings of this study, toremifene plus atamestane was just as effective as either drug alone, but it might not have any further advantages over either drug alone[3].
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Animal Protocol |
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References |
[1]. Matthew R Smith, Selective Estrogen Receptor Modulators to Prevent Treatment-Related Osteoporosis.Rev Urol. 2005; 7(Suppl 3): S30-S35.
[2]. Laura Cooper, et al. Screening and Reverse-Engineering of Estrogen Receptor Ligands as Potent Pan-Filovirus Inhibitors. J Med Chem. 2020 Sep 4. [3]. Gauri J Sabnis, Luciana Macedo, Olga Goloubeva, Toremifene - Atamestane; Alone or In Combination: Predictions from the Preclinical Intratumoral Aromatase Model. J Steroid Biochem Mol Biol. 2008 January; 108(1-2): 1-7. [4]. Taneja SS, Morton R, Barnette G, Prostate cancer diagnosis among men with isolated high-grade intraepithelial neoplasia enrolled onto a 3-year prospective phase III clinical trial of oral toremifene. J Clin Oncol. 2013 Feb 10;31(5):523-9. |
Molecular Formula |
C32H36CLNO8
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Molecular Weight |
598.08
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CAS # |
89778-27-8
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Related CAS # |
Toremifene;89778-26-7;Toremifene-d6 citrate;1246833-71-5;Toremifene-d6 hydrochloride
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
ClC([H])([H])C([H])([H])/C(/C1C([H])=C([H])C([H])=C([H])C=1[H])=C(\C1C([H])=C([H])C([H])=C([H])C=1[H])/C1C([H])=C([H])C(=C([H])C=1[H])OC([H])([H])C([H])([H])N(C([H])([H])[H])C([H])([H])[H].O([H])C(C(=O)O[H])(C([H])([H])C(=O)O[H])C([H])([H])C(=O)O[H]
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InChi Key |
IWEQQRMGNVVKQW-OQKDUQJOSA-N
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InChi Code |
InChI=1S/C26H28ClNO.C6H8O7/c1-28(2)19-20-29-24-15-13-23(14-16-24)26(22-11-7-4-8-12-22)25(17-18-27)21-9-5-3-6-10-21;7-3(8)1-6(13,5(11)12)2-4(9)10/h3-16H,17-20H2,1-2H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)/b26-25-;
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Chemical Name |
(Z)-2-(4-(4-chloro-1,2-diphenylbut-1-en-1-yl)phenoxy)-N,N-dimethylethan-1-amine 2-hydroxypropane-1,2,3-tricarboxylate
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Synonyms |
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture. |
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Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (4.18 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 (4.18 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. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (4.18 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 1.6720 mL | 8.3601 mL | 16.7202 mL | |
5 mM | 0.3344 mL | 1.6720 mL | 3.3440 mL | |
10 mM | 0.1672 mL | 0.8360 mL | 1.6720 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.
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.