Plumbagin

For the mineral known as plombagine, see Plumbago (mineral).

Plumbagin or 5-hydroxy-2-methyl-1,4-naphthoquinone is an organic compound with the chemical formula C
₁₁H
₈O
₃. It is regarded as a toxin^[1] and it is genotoxic^[2] and mutagenic.^[3]

Plumbagin

Skeletal formula of plumbagin
Ball-and-stick model of plumbagin
Names
Preferred IUPAC name 5-Hydroxy-2-methylnaphthalene-1,4-dione
Identifiers
CAS Number	481-42-5 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:8273 Y
ChEMBL	ChEMBL295316 Y
ChemSpider	9790 Y
ECHA InfoCard	100.006.882
IUPHAR/BPS	7003
KEGG	C10387 Y
PubChem CID	10205
UNII	YAS4TBQ4OQ Y
CompTox Dashboard (EPA)	DTXSID8075413
InChI InChI=1S/C11H8O3/c1-6-5-9(13)10-7(11(6)14)3-2-4-8(10)12/h2-5,12H,1H3 Y Key: VCMMXZQDRFWYSE-UHFFFAOYSA-N Y InChI=1/C11H8O3/c1-6-5-9(13)10-7(11(6)14)3-2-4-8(10)12/h2-5,12H,1H3 Key: VCMMXZQDRFWYSE-UHFFFAOYAB
SMILES Oc1c2C(=O)cc(C)C(=O)c2ccc1
Properties
Chemical formula	C11H8O3
Molar mass	188.17942 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Plumbagin is a yellow dye,^[1] formally derived from naphthoquinone.

It is named after the plant genus Plumbago, from which it was originally isolated.^[4] It is also commonly found in the carnivorous plant genera Drosera and Nepenthes.^[5][6] It is also a component of the black walnut drupe.

See also

• Juglone