Shikalkin

莽草素

Also known as: Shikonin (mixture of optical isomers, about 1:1), 5,8-Dihydroxy-2-(1-hydroxy-4-methylpent-3-enyl)naphthalene-1,4-dione, 1,4-Naphthalenedione, 5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-penten-1-yl)-, Arnebin-4, Nsc 291845, (±)-Shikonin, (±)-Alkannin

Shikalkin (CAS 54952-43-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H16O5 and a molecular weight of 288.295 g/mol. It is also known as Shikonin (mixture of optical isomers, about 1:1), 5,8-Dihydroxy-2-(1-hydroxy-4-methylpent-3-enyl)naphthalene-1,4-dione and 1,4-Naphthalenedione, 5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-penten-1-yl)-. Key properties include a melting point of 149 °C, a boiling point of 567.4±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 311.0±26.6 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
54952-43-1
Jingsj CID
J-22756-2
Molecular Formula
C16H16O5
Chinese Name
莽草素
Molecular Weight
288.295 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point149 °C
Boiling Point567.4±50.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point311.0±26.6 °C

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

Frequently Asked Questions

What is the CAS number of Shikalkin?

The CAS number of Shikalkin is 54952-43-1.

What are the molecular formula and molecular weight of Shikalkin?

Shikalkin has molecular formula C16H16O5 and molecular weight 288.295 g/mol.

Is Shikalkin hazardous?

Shikalkin has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Shikalkin (CAS 54952-43-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22756-2 (accessed 2026-10-23).

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