3',4'-dimethoxyflavone

Also known as: 2-(3,4-Dimethoxyphenyl)-4H-1-benzopyran-4-one, 2-(3,4-Dimethoxyphenyl)chromen-4-one, 3',4'-DMF, Flavone, 3',4'-dimethoxy-

3',4'-dimethoxyflavone (CAS 4143-62-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C17H14O4 and a molecular weight of 282.29100 g/mol. Key properties include a melting point of 154-155°C, a boiling point of 428.5ºC at 760 mmHg, a density of 1.242g/cm3 and a flash point of 190.6ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4143-62-8
Jingsj CID: J-22186-3
Molecular Formula: C₁₇H₁₄O₄
Molecular Weight: 282.29100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	154-155°C
Boiling Point	428.5ºC at 760 mmHg
Density	1.242g/cm3
Flash Point	190.6ºC
Exact Mass	282.08900
PSA	48.67000
LogP	3.47720
Refractive Index	1.598

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

H301 — Toxic if swallowed

Activity & Biological Data

Target	PARP, Aryl hydrocarbon receptor[1]
Additional Information	[1]. Budzianowski J, et al. Lipophilic flavones of Primula veris L. from field cultivation and in vitro cultures. Phytochemistry. 2005 May;66(9):1033-9. [2]. Fatokun AA, et al. Identification through high-throughput screening of 4'-methoxyflavone and 3',4'-dimethoxyflavone as novel neuroprotective inhibitors of parthanatos. Br J Pharmacol. 2013 Jul;169(6):1263-78. [3]. Lee JE, et al. 3',4'-dimethoxyflavone as an aryl hydrocarbon receptor antagonist in human breast cancer cells. Toxicol Sci. 2000 Dec;58(2):235-42. [4]. Kaur K, et al. 3',4'-Dimethoxyflavone and valproic acid promotes the proliferation of human hematopoietic stem cells. Stem Cell Res Ther. 2013 May 24;4(3):60.

Target

PARP, Aryl hydrocarbon receptor[1]

Additional Information

[1]. Budzianowski J, et al. Lipophilic flavones of Primula veris L. from field cultivation and in vitro cultures. Phytochemistry. 2005 May;66(9):1033-9. [2]. Fatokun AA, et al. Identification through high-throughput screening of 4'-methoxyflavone and 3',4'-dimethoxyflavone as novel neuroprotective inhibitors of parthanatos. Br J Pharmacol. 2013 Jul;169(6):1263-78. [3]. Lee JE, et al. 3',4'-dimethoxyflavone as an aryl hydrocarbon receptor antagonist in human breast cancer cells. Toxicol Sci. 2000 Dec;58(2):235-42. [4]. Kaur K, et al. 3',4'-Dimethoxyflavone and valproic acid promotes the proliferation of human hematopoietic stem cells. Stem Cell Res Ther. 2013 May 24;4(3):60.

Customs & Trade Information

HS Code	2914509090
Summary	HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3',4'-dimethoxyflavone?

The CAS number of 3',4'-dimethoxyflavone is 4143-62-8.

What are the molecular formula and molecular weight of 3',4'-dimethoxyflavone?

3',4'-dimethoxyflavone has molecular formula C17H14O4 and molecular weight 282.29100 g/mol.

Is 3',4'-dimethoxyflavone hazardous?

3',4'-dimethoxyflavone has GHS signal word Danger and hazard statements H301 — Toxic if swallowed.

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. "3',4'-dimethoxyflavone (CAS 4143-62-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22186-3 (accessed 2026-11-09).

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