alpha-Lapachone
Also known as: α-Lapachone, 2,2-dimethyl-3,4-dihydrobenzo[g]chromene-5,10-dione, 2,2-Dimethyl-3,4-dihydro-2H-benzo[g]chromene-5,10-dione, 2,2-Dimethyl-3,4-dihydro-2H-naphtho[2,3-b]pyran-5,10-dione, 3,4-Dihydro-2,2-dimethyl-2H-naphtho[2,3-b]pyran-5,10-dione, Lapachoone-alpha
alpha-Lapachone (CAS 4707-33-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H14O3 and a molecular weight of 242.270 g/mol. Key properties include a boiling point of 372.9±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 165.5±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4707-33-9
- Jingsj CID
- J-1955356-1
- Molecular Formula
- C15H14O3
- Molecular Weight
- 242.270 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 372.9±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 165.5±27.9 °C |
| Exact Mass | 242.094299 |
| PSA | 43.37000 |
| LogP | 3.13 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.595 |
Activity & Biological Data
| Additional Information | [1]. Pinto AV, de Castro SL. The trypanocidal activity of naphthoquinones: a review. Molecules. 2009;14(11):4570-4590. Published 2009 Nov 10. |
|---|
Frequently Asked Questions
What is the CAS number of alpha-Lapachone?
The CAS number of alpha-Lapachone is 4707-33-9.
What are the molecular formula and molecular weight of alpha-Lapachone?
alpha-Lapachone has molecular formula C15H14O3 and molecular weight 242.270 g/mol.
What are the upstream and downstream products of alpha-Lapachone?
For alpha-Lapachone, Upstream Products: Dehydro-α-lapachone, Lapachol, Dihydrolapachenol; Downstream Products: β-Lapachone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alpha-Lapachone (CAS 4707-33-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1955356-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.