alpha-Lapachone

α-拉帕醌

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. It is also known as α-Lapachone, 2,2-dimethyl-3,4-dihydrobenzo[g]chromene-5,10-dione and 2,2-Dimethyl-3,4-dihydro-2H-benzo[g]chromene-5,10-dione. 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-1955356-4
Molecular Formula
C15H14O3
Chinese Name
α-拉帕醌
Molecular Weight
242.270 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point372.9±42.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point165.5±27.9 °C

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.

Data compiled from public chemical databases 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-1955356-4 (accessed 2026-10-22).

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