Shikonin
紫草素
Also known as: Shikonine, Alkannin, 5,8-Dihydroxy-2-[(1R)-1-hydroxy-4-methyl-pent-3-enyl]naphthalene-1,4-dione, Gromwell red, Tokyo Violet, C.I. 75535, NSC 252844, Isoarnebin 4
Shikonin (CAS 517-89-5) 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 Shikonine, Alkannin and 5,8-Dihydroxy-2-[(1R)-1-hydroxy-4-methyl-pent-3-enyl]naphthalene-1,4-dione. Key properties include a melting point of 147ºC, 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. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 517-89-5
- Jingsj CID
- J-18827-6
- Molecular Formula
- C16H16O5
- Chinese Name
- 紫草素
- Molecular Weight
- 288.295 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 147ºC |
|---|---|
| Boiling Point | 567.4±50.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 311.0±26.6 °C |
Frequently Asked Questions
What is the CAS number of Shikonin?
The CAS number of Shikonin is 517-89-5.
What are the molecular formula and molecular weight of Shikonin?
Shikonin has molecular formula C16H16O5 and molecular weight 288.295 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Shikonin (CAS 517-89-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18827-6 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.