Prinaberel

Also known as: ERB 041, WAY-202041, 2-(3-Fluoro-4-hydroxyphenyl)-7-vinylbenzoxazol-5-ol, 2-(3-Fluoro-4-hydroxyphenyl)-7-vinyl-1,3-benzoxazol-5-ol, 5-Benzoxazolol, 7-ethenyl-2-(3-fluoro-4-hydroxyphenyl)-, 7-Ethenyl-2-(3-fluoro-4-hydroxyphenyl)-5-benzoxazolol, BIDD:ER0139, UNII-A9C8MNF7CA

Prinaberel (CAS 524684-52-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C15H10FNO3 and a molecular weight of 271.243 g/mol. Key properties include a melting point of 250-252ºC, a boiling point of 451.6±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 226.9±28.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 524684-52-4
Jingsj CID: J-1917-0
Molecular Formula: C₁₅H₁₀FNO₃
Molecular Weight: 271.243 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	250-252ºC
Boiling Point	451.6±45.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	226.9±28.7 °C
Exact Mass	271.064484
PSA	66.49000
LogP	3.97
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.695
Storage Conditions	2-8℃

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H319 — Causes serious eye irritation

Activity & Biological Data

Additional Information	[1]. Hinsche O, et al. Estrogen receptor β selective agonists reduce invasiveness of triple-negative breast cancer cells. Int J Oncol. 2015 Feb;46(2):878-84. [2]. Chaudhary SC, et al. Erb-041, an estrogen receptor-β agonist, inhibits skin photocarcinogenesis in SKH-1 hairless mice by downregulating the WNT signaling pathway. Cancer Prev Res (Phila). 2014 Feb;7(2):186-98. [3]. Xiu-li W, et al. ERB-041, a selective ER beta agonist, inhibits iNOS production in LPS-activated peritoneal macrophages of endometriosis via suppression of NF-kappaB activation. Mol Immunol. 2009 Jul;46(11-12):2413-8.

Additional Information

[1]. Hinsche O, et al. Estrogen receptor β selective agonists reduce invasiveness of triple-negative breast cancer cells. Int J Oncol. 2015 Feb;46(2):878-84. [2]. Chaudhary SC, et al. Erb-041, an estrogen receptor-β agonist, inhibits skin photocarcinogenesis in SKH-1 hairless mice by downregulating the WNT signaling pathway. Cancer Prev Res (Phila). 2014 Feb;7(2):186-98. [3]. Xiu-li W, et al. ERB-041, a selective ER beta agonist, inhibits iNOS production in LPS-activated peritoneal macrophages of endometriosis via suppression of NF-kappaB activation. Mol Immunol. 2009 Jul;46(11-12):2413-8.

Frequently Asked Questions

What is the CAS number of Prinaberel?

The CAS number of Prinaberel is 524684-52-4.

What are the molecular formula and molecular weight of Prinaberel?

Prinaberel has molecular formula C15H10FNO3 and molecular weight 271.243 g/mol.

Is Prinaberel hazardous?

Prinaberel has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

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. "Prinaberel (CAS 524684-52-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1917-0 (accessed 2026-11-09).

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