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R1402

Sigma-Aldrich

Raloxifene hydrochloride

solid

Synonym(s):

Keoxifene hydrochloride, LY 156758, [6-Hydroxy-2-(4-hydroxyphenyl)benzo[b]thien-3-yl][4-[2-(1-piperidinyl)ethoxy]phenyl]methanone hydrochloride

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About This Item

Empirical Formula (Hill Notation):
C28H27NO4S · HCl
CAS Number:
82640-04-8
Molecular Weight:
510.04
MDL number:
MFCD01938233
UNSPSC Code:
51111800
PubChem Substance ID:
24278673
NACRES:
NA.77

form

solid

color

light yellow

solubility

DMSO: soluble 28 mg/mL
H2O: insoluble

originator

Eli Lilly

SMILES string

Cl[H].Oc1ccc(cc1)-c2sc3cc(O)ccc3c2C(=O)c4ccc(OCCN5CCCCC5)cc4

InChI

1S/C28H27NO4S.ClH/c30-21-8-4-20(5-9-21)28-26(24-13-10-22(31)18-25(24)34-28)27(32)19-6-11-23(12-7-19)33-17-16-29-14-2-1-3-15-29;/h4-13,18,30-31H,1-3,14-17H2;1H

InChI key

BKXVVCILCIUCLG-UHFFFAOYSA-N

Gene Information

human ... ESR2(2100)

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Application

Raloxifene hydrochloride has been used:
  • as a competitive inhibitors for estrogen receptor α in breast cancer cells
  • as an anti-resorptive agents to test its effect on improving bone mineral density (BMD) in six-month-old female ovariectomized rats
  • to test effect on viability of esophageal adenocarcinoma cells

Biochem/physiol Actions

Raloxifene is benzothiophene compound and is used in treating postmenopausal osteoporosis It comparatively induces lesser risk in developing thromboembolic events and cataracts compared to tamoxifen. Raloxifene also interacts with estrogen receptors and plasma proteins.
Raloxifene is a selective estrogen receptor modulator (SERM); acts as an anti-estrogen in both breast and uterine tissue while being estrogenic in bone. May have efficacy against estrogen-sensitive cancers.

Features and Benefits

This compound is featured on the Nuclear Receptors (Steroids) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
This compound was developed by Eli Lilly. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

pictograms

Health hazard
GHS08

signalword

Warning

Hazard Classifications

Carc. 2 - Repr. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Raloxifene
Moen MD, et al.
Drugs (2008)
The SERM/SERD bazedoxifene disrupts ESR1 helix 12 to overcome acquired hormone resistance in breast cancer cells
Fanning SW, et al.
eLife, 7, e37161-e37161 (2018)
Rachel K Surowiec et al.
Bone, 173, 116805-116805 (2023-05-18)
Raloxifene (RAL) reduces clinical fracture risk despite modest effects on bone mass and density. This reduction in fracture risk may be due to improved material level-mechanical properties through a non-cell mediated increase in bone hydration. Synthetic salmon calcitonin (CAL) has
Effect of osteoporosis treatment agents on the cortical bone osteocyte microenvironment in adult estrogen-deficient, osteopenic rats
Stern AR, et al.
BoneKEy reports, 8, 115-124 (2018)
Raloxifene: a selective estrogen receptor modulator (SERM) with multiple target system effects
Muchmore DB
Oncologist, 5(5), 388-392 (2000)
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