Alkannin
左旋紫草素
Also known as: (-)-Alkannin, Alkannin (VAN), Anchusin, C.I. Natural Red 20, Alkanna Red, Anchusa acid, Anchusic acid, 5,8-Dihydroxy-2-[(1S)-1-hydroxy-4-methyl-3-penten-1-yl]-1,4-naphthoquinone
Alkannin (CAS 517-88-4) 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 (-)-Alkannin, Alkannin (VAN) and Anchusin. Key properties include a melting point of 149°, 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.
- 517-88-4
- Jingsj CID
- J-1977496-3
- Molecular Formula
- C16H16O5
- Chinese Name
- 左旋紫草素
- 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 | 149° |
|---|---|
| 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 Alkannin?
The CAS number of Alkannin is 517-88-4.
What are the molecular formula and molecular weight of Alkannin?
Alkannin 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. "Alkannin (CAS 517-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1977496-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.