Benzanthrone

Summary

Benzanthrone (BZA) is a polycyclic aromatic hydrocarbon. It is a yellow solid.[1] Its derivatives are used as a dyestuff intermediate for anthraquinone-based dyes.[2] Dehydrogenative coupling gives violanthrone. It is prepared by reduction of anthroquinone to anthrone followed by alkylation with a mixture of glycerol and sulfuric acid.

Benzanthrone
Skeletal formula of benzanthrone
Ball-and-stick model
Names
Preferred IUPAC name
7H-Benzo[de]anthracen-7-one
Other names
Benzanthrenone
1,9-Benzanthrone
MS-Benzanthrone
Mesobenzanthrone
Naphtanthrone
7H-Benz(de)anthracene-7-one
7-Oxobenz(de)anthracene
Identifiers
  • 82-05-3 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:93350
ChEMBL
  • ChEMBL1607517 ☒N
ChemSpider
  • 6442 checkY
ECHA InfoCard 100.001.268 Edit this at Wikidata
EC Number
  • 201-393-3
  • 6697
UNII
  • LP5P3RR8QN
UN number 2811
  • DTXSID8052566 Edit this at Wikidata
  • InChI=1S/C17H10O/c18-17-14-8-2-1-7-12(14)13-9-3-5-11-6-4-10-15(17)16(11)13/h1-10H checkY
    Key: HUKPVYBUJRAUAG-UHFFFAOYSA-N checkY
  • InChI=1/C17H10O/c18-17-14-8-2-1-7-12(14)13-9-3-5-11-6-4-10-15(17)16(11)13/h1-10H
    Key: HUKPVYBUJRAUAG-UHFFFAOYAL
  • O=C3c4c(c2cccc1cccc3c12)cccc4
Properties
C17H10O
Molar mass 230.266 g·mol−1
Appearance Light yellow to brown-green solid
Melting point 170 °C (338 °F; 443 K)
Insoluble
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

It is a basic substance with fluorescent and luminescent properties. It can be used for photosensitization, and as a charge transport material. It is also used in pyrotechnics industry, mainly as a component of some older formulations of green and yellow colored smokes, often together with Vat Yellow 4; its US military specification is MIL-D-50074D.[3]

Safety edit

Benzanthrone causes itching and burning sensations on exposed skin, together with erythema, dermatitis, and skin pigmentation.[4]

See also edit

References edit

  1. ^ Macleod, L. C.; Allen, C. F. H. (1934). "Benzanthrone". Organic Syntheses. 14: 4. doi:10.15227/orgsyn.014.0004.
  2. ^ Bien, H.-S.; Stawitz, J.; Wunderlich, K. (2005). "Anthraquinone Dyes and Intermediates". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a02_355. ISBN 978-3527306732.
  3. ^ Benzanthrone. National Academies Press (US). 1999.
  4. ^ "Appendix A: Benzanthrone". Toxicity of Military Smokes and Obscurants. Vol. 3. 1999.

External links edit

  • National Pollutant Inventory - Polycyclic Aromatic Hydrocarbon Fact Sheet