Xantocillin

Xantocillin^[1] (INN), also known as xanthocillin X or ophthocillin, was the first reported natural product found to contain the isocyanide functional group. It was first isolated from Penicillium notatum by Rothe in 1950^[2] and subsequently from several other sources.^[3][4]

Xantocillin

Names
Preferred IUPAC name 4,4′-[(1Z,3Z)-2,3-Diisocyanobuta-1,3-diene-1,4-diyl]diphenol
Other names Xanthocillin X, Ophthocillin
Identifiers
CAS Number	580-74-5 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL1977264
ChemSpider	21106491
PubChem CID	5378293
UNII	06Z55VZ40D Y
CompTox Dashboard (EPA)	DTXSID801018149
SMILES [C-]#[N+]C(=CC1=CC=C(C=C1)O)C(=CC2=CC=C(C=C2)O)[N+]#[C-]
Properties
Chemical formula	C18H12N2O2
Molar mass	288.306 g·mol−1
Appearance	Yellow crystals
Melting point	200 °C (392 °F; 473 K) (decomposes)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

See also

• Questiomycin A
• U0126