Tamoxifen citrate

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 100800

CAS#: 54965-24-1 (citrate)

Description: Tamoxifen, also known as ICI 46474, is an antagonist of the estrogen receptor in breast tissue via its active metabolite, 4-hydroxytamoxifen. In other tissues such as the endometrium, it behaves as an agonist, and thus may be characterized as a selective estrogen-receptor modulator. Tamoxifen is the usual endocrine (anti-estrogen) therapy for hormone receptor-positive breast cancer in pre-menopausal women, and is also a standard in post-menopausal women although aromatase inhibitors are also frequently used in that setting.

Chemical Structure

Tamoxifen citrate
CAS# 54965-24-1 (citrate)

Theoretical Analysis

MedKoo Cat#: 100800
Name: Tamoxifen citrate
CAS#: 54965-24-1 (citrate)
Chemical Formula: C32H37NO8
Exact Mass:
Molecular Weight: 563.65
Elemental Analysis: C, 68.19; H, 6.62; N, 2.49; O, 22.71

Size Price Shipping out time Quantity
500mg USD 220 2 Weeks
1g USD 360 2 Weeks
5g USD 705 2 Weeks
10g USD 1250 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-01. Prices are subject to change without notice.

Tamoxifen citrate, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received. Delivery time: overnight (USA/Canada); 3-5 days (worldwide).

Related CAS #: 54965-24-1 (citrate)   10540-29-1 (free base)  

Synonym: ICI 46474, ICI-46474, ICI46474, NSC 180973, tamoxifen, tamoxifeni citras, Nolvadex, Novaldex

IUPAC/Chemical Name: (Z)-2-(4-(1,2-diphenylbut-1-en-1-yl)phenoxy)-N,N-dimethylethanamine 2-hydroxypropane-1,2,3-tricarboxylate


InChi Code: InChI=1S/C26H29NO.C6H8O7/c1-4-25(21-11-7-5-8-12-21)26(22-13-9-6-10-14-22)23-15-17-24(18-16-23)28-20-19-27(2)3;7-3(8)1-6(13,5(11)12)2-4(9)10/h5-18H,4,19-20H2,1-3H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)/b26-25-;


White to off-white crystalline powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 563.65 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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