Isotanshinone IIA

异丹参酮IIA

Also known as: 1,2,3,4-Tetrahydro-4,4,8-trimethylphenanthro[3,2-b]furan-7,11-dione, Isotanshinone II, iso-Tanshinone II, Isotanshinone II (Salvia miltiorhiza), Isotanshinon-II, 4,4,8-Trimethyl-2,3-dihydro-1H,4H-10-oxa-cyclopenta[b]phenanthrene-7,11-dione

Isotanshinone IIA (CAS 20958-15-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H18O3 and a molecular weight of 294.34400 g/mol. It is also known as 1,2,3,4-Tetrahydro-4,4,8-trimethylphenanthro[3,2-b]furan-7,11-dione, Isotanshinone II and iso-Tanshinone II. Key property: a boiling point of 471.1±45.0 °C(Predicted). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20958-15-0
Jingsj CID: J-1988312-2
Molecular Formula: C₁₉H₁₈O₃
Chinese Name: 异丹参酮IIA
Molecular Weight: 294.34400 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	471.1±45.0 °C(Predicted)

Frequently Asked Questions

What is the CAS number of Isotanshinone IIA?

The CAS number of Isotanshinone IIA is 20958-15-0.

What are the molecular formula and molecular weight of Isotanshinone IIA?

Isotanshinone IIA has molecular formula C19H18O3 and molecular weight 294.34400 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Isotanshinone IIA (CAS 20958-15-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1988312-2 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.