Tanshinone I

Also known as: 1,6-Dimethylphenanthro[1,2-b]furan-10,11-dione, Tanshinon I, Tanshine I, Tanshinone 1, Tanshinquinone I

Tanshinone I (CAS 568-73-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C18H12O3 and a molecular weight of 276.286 g/mol. Key properties include a melting point of 233-234ºC, a boiling point of 498.0±24.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 245.9±15.6 °C. GHS hazard statements: H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 568-73-0
Jingsj CID: J-1959636-9
Molecular Formula: C₁₈H₁₂O₃
Molecular Weight: 276.286 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	233-234ºC
Boiling Point	498.0±24.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	245.9±15.6 °C
Exact Mass	276.078644
PSA	47.28000
LogP	4.44
Vapor Pressure	0.0±1.3 mmHg at 25°C
Refractive Index	1.676
Storage Conditions	2-8°C

GHS Safety & Compliance

H413

Activity & Biological Data

Target	IC50: 11 μM (sPLA2), 82 μM (cPLA2)[1].
Additional Information	[1]. Kim SY, et al. Effects of Tanshinone I isolated from Salvia miltiorrhiza bunge on arachidonic acid metabolism and in vivo inflammatory responses. Phytother Res. 2002 Nov;16(7):616-20.

Frequently Asked Questions

What is the CAS number of Tanshinone I?

The CAS number of Tanshinone I is 568-73-0.

What are the molecular formula and molecular weight of Tanshinone I?

Tanshinone I has molecular formula C18H12O3 and molecular weight 276.286 g/mol.

Is Tanshinone I hazardous?

Tanshinone I has GHS hazard statements H413.

What are the upstream and downstream products of Tanshinone I?

For Tanshinone I, Upstream Products: Bromoacetone, 5-Bromovanillin.

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. "Tanshinone I (CAS 568-73-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1959636-9 (accessed 2026-11-06).

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