CAS Number
PubChem CID
ECHA InfoCard 100.005.779
Chemical and physical data
Formula C9H10Cl2N2O2
Molar mass 249.091 g/mol
3D model (JSmol)

Linuron (3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea) is a phenylurea herbicide[1] that is used to control the growth of grass and weeds for the purpose of supporting the growth of crops like soybeans.[2][3]


Mechanism of action

Linuron acts via inhibition of photosystem II, which is necessary for photosynthetic electron transport in plants.[2][3]

Effects in animals

Linuron has been found to produce reproductive toxicity in animals by acting as an androgen receptor (AR) antagonist, and for this reason, is considered to be an endocrine disruptor.[2][4] Consequently, in January 2017, the European Commission Standing Committee on Plants, Animals, Food and Feed (SCoPAFF) decided to not renew its regulatory approval.[5] Sales are expected to cease by June 2017.[5]

See also


  1. Maier-Bode, H.; Härtel, K. (1981). "Linuron and monolinuron". 77: 1–243. doi:10.1007/978-1-4612-5874-2_1. ISSN 0179-5953.
  2. 1 2 3 Steven Mercurio (30 August 2016). Understanding Toxicology. Jones & Bartlett Learning. pp. 705–. ISBN 978-1-284-12761-4.
  3. 1 2 T. R. Roberts; Terry R. Roberts (1998). Metabolic Pathways of Agrochemicals. Royal Society of Chemistry. pp. 744–. ISBN 978-0-85404-494-8.
  4. "Peer review of the pesticide risk assessment of the active substance linuron". EFSA Journal. 14 (7). July 2016. doi:10.2903/j.efsa.2016.4518.
  5. 1 2 Curtis, Marianne. "Linuron fails to gain renewed approval". Briefing Media Ltd. Retrieved 24 May 2017.
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