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Structural formula
Structure of 9,10-diphenylanthracene
Surname 9,10-diphenylanthracene
other names
  • DPA
  • Cyalume Blue
Molecular formula C 26 H 18
Brief description

slightly yellowish powder

External identifiers / databases
CAS number 1499-10-1
EC number 216-105-1
ECHA InfoCard 100.014.641
PubChem 15159
Wikidata Q274986
Molar mass 330.42 g mol −1
Physical state



1.22 g cm −3

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

9,10-diphenylanthracene from xylene, monoclinic, micrograph, illuminated with black light

9,10-Diphenylanthracene , also known as DPA , is a slightly yellow-colored polycyclic aromatic hydrocarbon which is used as a fluorescent substance in fluorescent sticks. As a result of chemiluminescence, it emits blue light in this case.

It is also an organic semiconductor and serves as the starting material for the production of blue organic light-emitting diodes .

The chlorinated hydrocarbon formed therefrom, 2-chloro-9,10-diphenylanthracene , also serves as a phosphor in blue-green fluorescent sticks.

Individual evidence

  1. a b c data sheet 9,10-Diphenylanthracene, analytical standard, for environmental analysis at Sigma-Aldrich , accessed on November 8, 2016 ( PDF ).
  2. JM Adams, S. Ramdas: The Crystal Structure of Solution-Grown 9,10-Diphenylanthracene. A Combined Computational and X-Ray Study . In: Acta Crystallographica Section B . 35, No. 3, 1979, pp. 679-683.