1,8-Diazafluoren-9-one

1,8-Diazafluoren-9-one
Names
	IUPAC name 9H-pyrido[3',2':3,4]cyclopenta[1,2-b]pyridin-9-one
	Other names DFO; 9H-1,8-Diazafluoren-9-one; 9H-Cyclopenta[1,2-b:4,3-b']dipyridin-9-one
Identifiers
CAS Number	54078-29-4;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	633891 ;
CompTox Dashboard (EPA)	DTXSID10352406 ;
	InChI InChI=1S/C11H6N2O/c14-11-9-7(3-1-5-12-9)8-4-2-6-13-10(8)11/h1-6H Key: FOSUVSBKUIWVKI-UHFFFAOYSA-N ; InChI=1/C11H6N2O/c14-11-9-7(3-1-5-12-9)8-4-2-6-13-10(8)11/h1-6H Key: FOSUVSBKUIWVKI-UHFFFAOYAH;
	SMILES O=C1C3=C(C=CC=N3)C2=C1N=CC=C2; O=C3c1ncccc1c2c3nccc2;
Properties
Chemical formula	C11H6N2O
Molar mass	182.18 g/mol
Melting point	229-233 °C
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,8-Diazafluoren-9-one, also known as DFO, is a chemical that is used to find fingerprints on porous surfaces. It makes fingerprints glow when they are lit by blue-green light.

DFO reacts with amino acids present in the fingerprint to form highly fluorescent derivatives. Excitation with light at ~470 nm results in emission at ~570 nm.^[1]

References

^ C.A. Pounds; et al. (1990). J. Forensic Sci. 35: 169. {{cite journal}}: Explicit use of et al. in: |author= (help); Missing or empty |title= (help)

External links

RCMP report on 1,8-diazafluoren-9-one

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[1] C.A. Pounds; et al. (1990). J. Forensic Sci. 35: 169. {{cite journal}}: Explicit use of et al. in: |author= (help); Missing or empty |title= (help)

[1]