Protocetraric acid

Protocetraric acid
Names
	IUPAC name 10-Formyl-3,9-dihydroxy-4-(hydroxymethyl)-1,7-dimethyl-6-oxobenzo[b][1,4]benzodioxepine-2-carboxylic acid
Identifiers
CAS Number	489-51-0 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:144203;
ChemSpider	4590164;
EC Number	111-888-5;
PubChem CID	5489486;
CompTox Dashboard (EPA)	DTXSID70197633 ;
	InChI InChI=1S/C18H14O9/c1-6-3-10(21)8(4-19)15-11(6)18(25)27-16-9(5-20)13(22)12(17(23)24)7(2)14(16)26-15/h3-4,20-22H,5H2,1-2H3,(H,23,24) Key: VOXMONAUSQZPTP-UHFFFAOYSA-N;
	SMILES CC1=CC(=C(C2=C1C(=O)OC3=C(O2)C(=C(C(=C3CO)O)C(=O)O)C)C=O)O;
Properties
Chemical formula	C18H14O9
Molar mass	374.301 g·mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H317
Precautionary statements	P261, P272, P280, P302+P352, P321, P333+P317, P362+P364, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Protocetraric acid is a chemical compound with the molecular formula C₁₈H₁₄O₉. It is a secondary metabolite produced by a variety of lichens and is classified as a depsidone.