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33484

Sigma-Aldrich

1,8-Diazafluoren-9-one

Synonym(s):

Cyclopenta[1,2-b:4,3-b’]dipyridin-9-one

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About This Item

Empirical Formula (Hill Notation):
C11H6N2O
CAS Number:
54078-29-4
Molecular Weight:
182.18
Beilstein/REAXYS Number:
134499
MDL number:
MFCD00082335
UNSPSC Code:
12352108
PubChem Substance ID:
57648844
NACRES:
NA.32

Quality Level

100

mp

229-233 °C

solubility

acetic acid: 10 mg/mL, clear

fluorescence

λex 470 nm; λem 570 nm

storage temp.

2-8°C

SMILES string

O=C1c2ncccc2-c3cccnc13

InChI

1S/C11H6N2O/c14-11-9-7(3-1-5-12-9)8-4-2-6-13-10(8)11/h1-6H

InChI key

FOSUVSBKUIWVKI-UHFFFAOYSA-N

Application

1,8-Diazafluoren-9-one (DFO) is used in forensic science to detect latent fingerprints on paper and other materials. DFO forms highly fluorescent derivatives with amino acids (excitation ~470 nm; emission ~570 nm).

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Reagent forming highly fluorescent derivatives with amino acids (excitation ~470 nm; emission ~570 nm). Used for the detection of latent fingerprints on paper with high sensitivity.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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C.A. Pounds et al.
Journal of Forensic Sciences, 35, 169-169 (1990)
Danna E Bicknell et al.
Journal of forensic sciences, 53(5), 1108-1116 (2008-07-22)
1,2-Indanedione belongs to a class of compounds which have demonstrated great potential in the processing of latent prints, particularly in the area of fluorescence. However, variability in results achieved worldwide has precluded it from being used extensively. In order to
Aneta Lewkowicz et al.
Materials (Basel, Switzerland), 13(13) (2020-07-10)
The investigation of innovative label-free α-amino acids detection methods represents a crucial step for the early diagnosis of several diseases. While 1,8-diazafluoren-9-one (DFO) is known in forensic application because of the fluorescent products by reacting with the amino acids present
D Wilkinson
Forensic science international, 109(2), 87-103 (2000-03-08)
This paper describes the study of the reaction between 1, 8-diazafluoren-9-one (DFO) with the amino acid L-alanine in methyl alcohol. Particular interest was paid to the possible role of the solvent which appears to react with the DFO to form
Kelly Mayse et al.
Science & justice : journal of the Forensic Science Society, 59(3), 349-358 (2019-05-06)
A study into the modification of 1,8-diazafluoren-9-one (DFO) formulations by the additions of metal salts into the working solution is reported. Similar additions have been found to increase the fluorescence of marks developed using other amino acid reagents including 1,2-indandione
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