2,2'-Bis(3-hydroxy-1,4-naphthoquinone)

双-散沫花素

Also known as: 2,2'-Bi(3-hydroxy-1,4-naphthoquinone), Bi-lawsone, 3,3'-Bilawsone, 3,3'-Dihydroxy-[2,2'-binaphthalene]-1,1',4,4'-tetraone, Lawsone Dimer, LABOTEST-BB LT00452273, 3,3'-Dihydroxy-2,2'-bi-1,4-naphthoquinone

2,2'-Bis(3-hydroxy-1,4-naphthoquinone) (CAS 33440-64-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H10O6 and a molecular weight of 346.29000 g/mol. It is also known as 2,2'-Bi(3-hydroxy-1,4-naphthoquinone), Bi-lawsone and 3,3'-Bilawsone. Key properties include a melting point of 250ºC (dec.)(lit.), a boiling point of 391.4ºC at 760 mmHg, a density of 1.691g/cm3 and a flash point of 204.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33440-64-1
Jingsj CID
J-1365850-8
Molecular Formula
C20H10O6
Chinese Name
双-散沫花素
Molecular Weight
346.29000 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point250ºC (dec.)(lit.)
Boiling Point391.4ºC at 760 mmHg
Density1.691g/cm3
Flash Point204.7ºC

Frequently Asked Questions

What is the CAS number of 2,2'-Bis(3-hydroxy-1,4-naphthoquinone)?

The CAS number of 2,2'-Bis(3-hydroxy-1,4-naphthoquinone) is 33440-64-1.

What are the molecular formula and molecular weight of 2,2'-Bis(3-hydroxy-1,4-naphthoquinone)?

2,2'-Bis(3-hydroxy-1,4-naphthoquinone) has molecular formula C20H10O6 and molecular weight 346.29000 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2'-Bis(3-hydroxy-1,4-naphthoquinone) (CAS 33440-64-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1365850-8 (accessed 2026-10-22).

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