Dichlone

Dichlone
Names
Preferred IUPAC name
2,3-Dichloronaphthalene-1,4-dione
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.003.828 Edit this at Wikidata
EC Number
  • 204-210-5
UNII
UN number 2902 2761
  • InChI=1S/C10H4Cl2O2/c11-7-8(12)10(14)6-4-2-1-3-5(6)9(7)13/h1-4H
    Key: SVPKNMBRVBMTLB-UHFFFAOYSA-N
  • C1=CC=C2C(=C1)C(=O)C(=C(C2=O)Cl)Cl
Properties
C10H4Cl2O2
Molar mass 227.04 g·mol−1
Appearance Yellow crystals[1]
Melting point 193 °C (379 °F; 466 K)[1]
0.1 ppm[1]
Hazards
GHS labelling:[1]
GHS07: Exclamation markGHS09: Environmental hazard
Warning
H302, H315, H317, H319, H410
P261, P264, P264+P265, P270, P272, P273, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P391, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dichlone (trade names Phygon and Quintar) is a fungicide and algicide of the quinone class. It is a general use fungicide applied to fruits, vegetables, field crops, ornamentals, and residential and commercial outdoor areas.[1] It is also used to control blue algae.[2]

Dichlone is not persistent in soil and has moderate mammalian toxicity.[2]

Dichlone can be manufactured by the chlorination and oxidation of naphthalene.[3]

Synthesis of dichlone from naphthalene

References

  1. ^ a b c d "Dichlone (Phygon, Quintar) Chemical Profile". Pesticide Management Education Program, Cornell Cooperative Extension.
  2. ^ a b "Dichlone". Pesticide Properties DataBase, University of Hertfordshire.
  3. ^ Thomas A. Unger (1996). Pesticide Synthesis Handbook. William Andrew. p. 966. ISBN 0-8155-1853-6.