Tamoxifen citrate

Also known as: Tamoxifen citrate salt, Tamoxifen citrate (USP), 2-{4-[(1Z)-1,2-diphenyl-1-buten-1-yl]phenoxy}-N,N-dimethylethanamine 2-hydroxy-1,2,3-propanetricarboxylate (1:1), MFCD00058321, EINECS 259-415-2

Tamoxifen citrate (CAS 54965-24-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C32H37NO8 and a molecular weight of 563.638 g/mol. Key properties include a melting point of 140-144 °C, a boiling point of 665.9ºC at 760 mmHg and a flash point of 356.5ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H350 — May cause cancer and H360 — May damage fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 54965-24-1
Jingsj CID: J-42144-3
Molecular Formula: C₃₂H₃₇NO₈
Molecular Weight: 563.638 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	140-144 °C
Boiling Point	665.9ºC at 760 mmHg
Flash Point	356.5ºC
Exact Mass	563.251892
PSA	144.60000
LogP	4.74760
Additional Property	slightly soluble

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger

H302 — Harmful if swallowed
H350 — May cause cancer
H360 — May damage fertility or the unborn child

Activity & Biological Data

Target	Estrogen receptor[1]
Additional Information	[1]. Osborne CK. Tamoxifen in the treatment of breast cancer. N Engl J Med. 1998 Nov 26;339(22):1609-18. [2]. Hawariah A, et al. In vitro response of human breast cancer cell lines to the growth-inhibitory effects of styrylpyrone derivative (SPD) and assessment of its antiestrogenicity. Anticancer Res. 1998 Nov-Dec;18(6A):4383-6. [3]. Jia Y, et al. Cardiomyocyte-Specific Ablation of Med1 Subunit of the Mediator Complex Causes Lethal DilatedCardiomyopathy in Mice. PLoS One. 2016 Aug 22;11(8):e0160755.

Target

Estrogen receptor[1]

Additional Information

[1]. Osborne CK. Tamoxifen in the treatment of breast cancer. N Engl J Med. 1998 Nov 26;339(22):1609-18. [2]. Hawariah A, et al. In vitro response of human breast cancer cell lines to the growth-inhibitory effects of styrylpyrone derivative (SPD) and assessment of its antiestrogenicity. Anticancer Res. 1998 Nov-Dec;18(6A):4383-6. [3]. Jia Y, et al. Cardiomyocyte-Specific Ablation of Med1 Subunit of the Mediator Complex Causes Lethal DilatedCardiomyopathy in Mice. PLoS One. 2016 Aug 22;11(8):e0160755.

Customs & Trade Information

HS Code	2922199090
Summary	2922199090. other amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Tamoxifen citrate?

The CAS number of Tamoxifen citrate is 54965-24-1.

What are the molecular formula and molecular weight of Tamoxifen citrate?

Tamoxifen citrate has molecular formula C32H37NO8 and molecular weight 563.638 g/mol.

Is Tamoxifen citrate hazardous?

Tamoxifen citrate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H350 — May cause cancer; H360 — May damage fertility or the unborn child.

What are the upstream and downstream products of Tamoxifen citrate?

For Tamoxifen citrate, Upstream Products: Tamoxifen, Citric acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Tamoxifen citrate (CAS 54965-24-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42144-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.