| Description |
RaloxifeneHcl(LY156758 Hcl) is a second generation selective estrogen receptor antagonist. Target: Estrogen receptor Approved: September 14, 2007 Raloxifene activates TGF beta 3 promoter as a full agonist at nanomolar concentrations, and raloxifene inhibits the estrogen response element-containing vitellogenin promoter expression as a pure estrogen antagonist in transient transfection assays [1]. Raloxifene, has been demonstrated as a potent uncompetitive inhibitor of human liver aldehyde oxidase-catalyzed oxidation of phthalazine, vanillin, and nicotine-Delta1"(5")-iminium ion, with Ki values of 0.87 nM, 1.2 nM and 1.4 nM. Raloxifene has also been shown to be a noncompetitive inhibitor of an aldehyde oxidase-catalyzed reduction reaction of a hydroxamic acid-containing compound, with a Ki of 51 nM [2]. Raloxifene (3 mg/kg/day) has potent estrogenic activity on bone resorption and serum cholesterol, a lesser effect on bone formation, and minimal activity on uterine wet weight in ovariectomized (OVX) rats. [3]. Raloxifene (0.1 mg/kg-10 mg/kg, orally for 5 weeks) increases bone mineral density in the distal femur and proximal tibia in ovariectomized (OVX) rat. Raloxifene reduces serum cholesteroloral with ED50 of 0.2 mg/kg in ovariectomized (OVX) rat. Raloxifene diverges dramatically from estrogen in its lack of significant estrogenic effects on uterine tissue [4]. Raloxifene prevents cancellous osteopenia as well as the changes in radial bone growth, bone resorption, and blood cholesterol, but is less effective in reducing cancellous bone formation and does not prevent uterine atrophy in ovariectomized (OVX) rats [5]. |
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| Clinical Trial |
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| References |
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| Preparing Stock Solutions |
Please refer to the solubility information to select the appropriate solvent.
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| References |
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| Molecular Weight |
510.04 |
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| Formula |
C₂₈H₂₈ClNO₄S |
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| CAS No. |
82640-04-8 |
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| Storage |
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| Shipping | Room temperature in continental US; may vary elsewhere |
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| Solvent & Solubility |
10 mM in DMSO
* "<1 mg/ml"="" means="" slightly="" soluble="" or="" insoluble.="" "≥"="" means="" soluble,="" but="" saturation=""> |
Purity: 99.64%
COA (96 KB) HNMR (234 KB) LCMS (145 KB)
Handling Instructions (1252 KB)-
[1]. Yang, N.N., et al., Estrogen and raloxifene stimulate transforming growth factor-beta 3 gene expression in rat bone: a potential mechanism for estrogen- or raloxifene-mediated bone maintenance. Endocrinology, 1996. 137(5): p. 2075-84.
[2]. Obach, R.S., Potent inhibition of human liver aldehyde oxidase by raloxifene. Drug Metab Dispos, 2004. 32(1): p. 89-97.
[3]. Sato, M., M.K. Rippy, and H.U. Bryant, Raloxifene, tamoxifen, nafoxidine, or estrogen effects on reproductive and nonreproductive tissues in ovariectomized rats. FASEB J, 1996. 10(8): p. 905-12.
[4]. Black, L.J., et al., Raloxifene (LY139481 HCI) prevents bone loss and reduces serum cholesterol without causing uterine hypertrophy in ovariectomized rats. J Clin Invest, 1994. 93(1): p. 63-9.
[5]. Evans, G., et al., The effects of raloxifene on tibia histomorphometry in ovariectomized rats. Endocrinology, 1994. 134(5): p. 2283-8.
