Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

SML2368

Sigma-Aldrich

(Z)-Endoxifen

≥98% (HPLC)

Synonym(s):

4-Hydroxy-N-desmethyl-tamoxifen, Endoxifen, Metabolite BX, N-Desmethyl-4-hydroxytamoxifen, Z-Endoxifen

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C25H27NO2
CAS Number:
112093-28-4
Molecular Weight:
373.49
MDL number:
MFCD09840374
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

Application

(Z)-Endoxifen has been used to demonstrate the lack of contribution of subventricular zone and leptomeningeal cells in a study determining the generation of neuroblasts from astrocytes.

Biochem/physiol Actions

(Z)-Endoxifen (endoxifen) is an active tamoxifen metabolite generated via actions of cytochrome P450 (CYP) enzymes CYP3A4/5 and CYP2D6. Endoxifen is more potent than tamoxifen as a selective estrogen receptor modulator (SERM) both in vitro and in vivo with good pharmacokinetics and oral availability (∼80% MCF-7 tumor growth inhibition with 4-8 mg/kg/day endoxifen or 20 mg/kg/day tamoxifen in mice via p.o.). Endoxifen also exhibits 4-fold higher PKC inhibitory potency than tamoxifen and can overcome tamoxifen resistance due to cytochrome CYP2D6 polymorphism.

Pictograms

Health hazardEnvironment
GHS08,GHS09

Signal Word

Danger

Hazard Statements

H350,H360,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Phyllis Elkins et al.
Journal of pharmaceutical and biomedical analysis, 88, 174-179 (2013-09-24)
(Z)-Endoxifen (4-hydroxy-N-desmethyltamoxifen), an active metabolite generated via actions of CYP3A4/5 and CYP2D6, is a more potent selective estrogen receptor modulator (SERM) than tamoxifen. In the MCF-7 human mammary tumor xenograft model with female athymic mice, (Z)-endoxifen, at an oral dose
Paul Chen et al.
Cellular & molecular biology letters, 23, 3-3 (2018-01-09)
Endoxifen, an active metabolite of tamoxifen, has been shown to be an effective anti-estrogenic agent in estrogen receptor-positive breast cancer patients. In melanoma, estrogen receptor expression is shown to be associated with disease progression. However, the therapeutic benefit of endoxifen
Shagufta et al.
European journal of medicinal chemistry, 143, 515-531 (2017-12-06)
Tamoxifen (ICI 46 474), trans-1-(4-β-dimethylaminoethoxyphenyl)-1,2-diphenylbut-1-ene, is the most commonly used drug for the treatment of estrogen receptor positive breast cancer and has been saving lives worldwide for the past four decades. Tamoxifen is considered a pioneering drug due to its ubiquitous
Ateeq Ahmad et al.
Breast cancer research and treatment, 122(2), 579-584 (2010-01-07)
Endoxifen is the key active metabolite of tamoxifen, a widely used breast cancer drug. Orally administered tamoxifen, is extensively metabolized by cytochrome P450 (CYP) enzymes, namely CYP3A4 and CYP2D6, into active metabolites, especially endoxifen. Due to genetic polymorphism of CYP2D6
Todd C Skaar et al.
Clinical pharmacology and therapeutics, 103(5), 755-757 (2018-02-24)
This issue of Clinical Pharmacology & Therapeutics (CPT) includes the Clinical Pharmacogenetics Implementation Consortium (CPIC) guideline for using CYP2D6 genotyping to guide tamoxifen therapy for breast cancer patients. CYP2D6 metabolizes tamoxifen to its more active metabolite, endoxifen, and patients with
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service