N-Desmethyltamoxifen hydrochloride

Catalog No. size PriceQuantity
M6815-2 2mg solid $90
M6815-10 10mg solid $365


N-Desmethyltamoxifen hydrochloride is the major metabolite of tamoxifen in humans. N-Desmethyltamoxifen, a poor antiestrogen, is a ten-fold more potent protein kinase C (PKC) inhibitor than Tamoxifen. N-Desmethyltamoxifen hydrochloride is also a potent regulator of ceramide metabolism in human AML cells, limiting ceramide glycosylation, hydrolysis, and sphingosine phosphorylation.

Product information

CAS Number: 15917-65-4

Molecular Weight: 393.95

Formula: C25H28ClNO

Chemical Name: N-Desmethyltamoxifen hydrochloride

Smiles: Cl.CC/C(=C(\C1C=CC=CC=1)/C1C=CC(=CC=1)OCCNC)/C1C=CC=CC=1


InChi: InChI=1S/C25H27NO.ClH/c1-3-24(20-10-6-4-7-11-20)25(21-12-8-5-9-13-21)22-14-16-23(17-15-22)27-19-18-26-2;/h4-17,26H,3,18-19H2,1-2H3;1H/b25-24-;

Technical Data

Appearance: Solid Power.

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

N-desmethyltamoxifen hydrochloride (20-500 ng/ml; 48 hours) has a profound inhibitory effect upon all seven glioma lines (T98G, U87, U138, U373, ALW, AUK, CAS cells). N-desmethyltamoxifen hydrochloride (1.5-10 μM; 114 hours) inhibits growth of MCF 7 human mammary carcinoma cells. N-desmethyltamoxifen hydrochloride, resulting from the CYP3A4/5-mediated catalysis of tamoxifen, is the major primary quantitative metabolite of tamoxifen.


  1. Vertosick FT Jr, et al. A comparison of the relative chemosensitivity of human gliomas to tamoxifen and n-desmethyltamoxifen in vitro. J Neurooncol. 1994;19(2):97-103.
  2. Reddel RR,et al. N-desmethyltamoxifen inhibits growth of MCF 7 human mammary carcinoma cells in vitro. Eur J Cancer Clin Oncol. 1983 Aug;19(8):1179-81.
  3. Morad SA, et al. Modification of sphingolipid metabolism by tamoxifen and N-desmethyltamoxifen in acute myelogenous leukemia--Impact on enzyme activity and response to cytotoxics. Biochim Biophys Acta. 2015 Jul;1851(7):919-28.

Products are for research use only. Not for human use.

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