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(Z)-1-(p-Dimethylaminoethoxyphenyl)-1,2-diphenyl-1-butene, trans-2-[4-(1,2-Diphenyl-1-butenyl)phenoxy]-N,N-dimethylethylamine
Fórmula linear:
Número CAS:
Peso molecular:
Número EC:
Número MDL:
ID de substância PubChem:




97-98 °C (lit.)


H2O: insoluble <0.1% at 20 °C
chloroform: soluble 50 mg/mL, clear, colorless to faintly yellow
2-propanol: soluble
DMSO: soluble
ethanol: soluble
methanol: soluble
propylene glycol: soluble

espectro de atividade do antibiótico


Modo de ação

enzyme | inhibits



temperatura de armazenamento


SMILES string




InChI key


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Descrição geral

Tamoxifen is a selective estrogen response modifier (SERM), protein kinase C inhibitor and anti-angiogenetic factor. Tamoxifen is a prodrug that is metabolized to active metabolites 4-hydroxytamoxifen (4-OHT) and endoxifen by cytochrome P450 isoforms CYP2D6 and CYP3A4. In breast cancer, the gene repressor activity of tamoxifen against ERBB2 is dependent upon PAX2. Blocks estradiol-stimulated VEGF production in breast tumor cells.


Tamoxifen has been used to facilitate the recombination of ect2flox allele in mouse organs91. It has also been used to study its effect on lipopolysaccharide (LPS)-induced microglial activation92.


1, 5 g in glass bottle

Ações bioquímicas/fisiológicas

Protein kinase C inhibitor. Induces apoptosis in human malignant glioma cell lines. Tamoxifen and its metabolite 4-hydroxytamoxifen are selective estrogen response modifiers (SERMs) that act as estrogen antagonists in mammary gland. Blocks estradiol-stimulated VEGF production in breast tumor cells.

Características e benefícios

This compound was developed by AstraZeneca. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.
This compound is a featured product for ADME Tox research. Click here to discover more featured ADME Tox products. Learn more about bioactive small molecules for other areas of research at

Nota de preparo

Tamoxifen is soluble in chloroform at 50 mg/ml and yields a clear, colorless to faint yellow solution. It is also soluble in methanol, ethanol, 2-propanol and propylene glycol. Stock solutions of tamoxifen can also be prepared in DMSO at 10 mM. However, it is practically insoluble in water (solubility is <0.01%, 20° C). Solutions are sensitive to UV light, and DMSO solutions are stable when stored at -20° C in the dark.


Health hazardEnvironment

Palavra indicadora


Frases de perigo

Declarações de precaução

Classificações de perigo

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

Código de classe de armazenamento

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



Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

Certificado de análise

Insira o número de lote para pesquisar o Certificado de análise (COA).

Certificado de origem

Insira o número de lote para pesquisar o Certificado de origem (COO).

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. What is the solubility of tamoxifen, Product No. T5648?

    Tamoxifen is tested for solubility in chloroform at a concentration of 50mg/mL.  This yields a colorless to faint yellow solution.  Tamoxifen is practically insoluble in water.  It has been reported to be soluble in methanol, ethanol, 2-propanol and propylene glycol.  This product is also reported to be soluble in DMSO at 10mM concentration.  Reference for DMSO solubility: Wong, K.R., et al., Am. J. Physiol. Heart Circ. Physiol., 277, H1403-H1409 (1999).  Please also see the product information sheet (under Documents, above) for more information on the solubility of this product.

  6. What is the stability of tamoxifen (e.g., Product No. T5648) once in solution?

    Solutions of tamoxifen are sensitive to UV light. According to C.A. O'Brian et al., [Cancer Res. 45, 2462 (1985)], tamoxifen when dissolved in DMSO can be stored at -20°C in the dark. We generally recommend making the solution fresh right before each use.

  7. How do I find the expiration date of the bottle of Product No T5648, Tamoxifen, in my possession?

    According to Sigma Quality Control Data, T5648 (tamoxifen) should be stable for at least two years if stored dessicated at 2-8°C in the dark.  However, there is not an established expiration or retest date for Tamoxifen.  This product is guaranteed for 1 year from shipment, if stored correctly and unopened.

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Bon-Kyoung Koo et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(24), 7548-7550 (2015-05-30)
Rnf43 (RING finger protein 43) and Znrf3 (zinc/RING finger protein 3) (RZ) are two closely related transmembrane E3 ligases, encoded by Wnt target genes, that remove surface Wnt (wingless-int) receptors. The two genes are mutated in various human cancers. Such
Meimei Liu et al.
Aquatic toxicology (Amsterdam, Netherlands), 213, 105220-105220 (2019-06-16)
Tamoxifen (TAM) is an antiestrogenic agent and can enter the aquatic environment in wastewater. It has been reported that TAM can induce hepatic steatosis in vertebrates, however, the effects of TAM exposure on lipid metabolism of hepatopancreas in crustaceans remains
Shiyan Wang et al.
Cancer research, 79(16), 4086-4098 (2019-06-27)
Tripartite motif (TRIM) family proteins participate in a variety of important cellular processes, including apoptosis, cell-cycle arrest, DNA repair, and senescence. In this study, we demonstrated that a novel TRIM family member, TRIM67, was commonly silenced in colorectal cancer and
Takeo Nakaya et al.
Cancer research, 74(10), 2882-2891 (2014-03-15)
The intestinal epithelium maintains homeostasis by a self-renewal process involving resident stem cells, including Lgr5(+) crypt-base columnar cells, but core mechanisms and their contributions to intestinal cancer are not fully defined. In this study, we examined a hypothesized role for
Fang Li et al.
Cell cycle (Georgetown, Tex.), 18(17), 2067-2082 (2019-07-13)
Sirtuin1 (SIRT1) has recently emerged as a pivotal regulator of glucose metabolism and insulin sensitivity. However, the underlying mechanism has not been fully elucidated. In this study, we investigated the role of SIRT1 in the development of obesity and insulin


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