Toremifene Citrate

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

MedKoo CAT#: 100880

CAS#: 89778-27-8 (citrate)

Description: Toremifene citrate is an oral selective estrogen receptor modulator (SERM) which helps oppose the actions of estrogen in the body. Licensed in the United States under the brand name Fareston, toremifene citrate is FDA-approved for use in advanced (metastatic) breast cancer. It is also being evaluated for prevention of prostate cancer under the brand name Acapodene.

Price and Availability


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Toremifene 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). Shipping fee: from $30.00 (USA); from $45.00 (Canada); from $70.00 (international).

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 100880
Name: Toremifene Citrate
CAS#: 89778-27-8 (citrate)
Chemical Formula: C32H36ClNO8
Exact Mass:
Molecular Weight: 598.089
Elemental Analysis: C, 64.26; H, 6.07; Cl, 5.93; N, 2.34; O, 21.40

Related CAS #: 89778-27-8 (citrate)   89778-26-7 (free base)    

Synonym: Fareston; FC 1157a; FC-1157a; NK 622; NSC 613680; Toremifene citrate.

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


InChi Code: InChI=1S/C26H28ClNO.C6H8O7/c1-28(2)19-20-29-24-15-13-23(14-16-24)26(22-11-7-4-8-12-22)25(17-18-27)21-9-5-3-6-10-21;7-3(8)1-6(13,5(11)12)2-4(9)10/h3-16H,17-20H2,1-2H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)/b26-25-;


Technical Data

Solid 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).

Harmonized System Code:

Additional Information

Related CAS#
89778-27-8 (Toremifene Citrate)
89778-26-7 (Toremifene free base)


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2: Fitzpatrick JM, Schulman C, Zlotta AR, Schröder FH. Prostate cancer: a serious disease suitable for prevention. BJU Int. 2009 Apr;103(7):864-70. Review. PubMed PMID: 19302133.

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