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Fungicides
Carbendazim
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Carbendazim

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Carbendazim
Carbendazim Structural Formulae V.1.svg
Names
Preferred IUPAC name
Methyl (1H-1,3-benzimidazol-2-yl)carbamate
Other names
Mercarzole
Carbendazole
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.031.108
KEGG
PubChem CID
RTECS number
  • DD6500000
UNII
  • InChI=1S/C9H9N3O2/c1-14-9(13)12-8-10-6-4-2-3-5-7(6)11-8/h2-5H,1H3,(H2,10,11,12,13) checkY
    Key: TWFZGCMQGLPBSX-UHFFFAOYSA-N checkY
  • InChI=1/C9H9N3O2/c1-14-9(13)12-8-10-6-4-2-3-5-7(6)11-8/h2-5H,1H3,(H2,10,11,12,13)
    Key: TWFZGCMQGLPBSX-UHFFFAOYAS
  • COC(=O)Nc2nc1ccccc1[nH]2
Properties
C9H9N3O2
Molar mass 191.187 g/mol
Appearance Light gray powder
Density 1.45 g/cm3
Melting point 302 to 307 °C (576 to 585 °F; 575 to 580 K) (decomposes)
8 mg/L

Disintegration = 302 -305 degree Temperature of disintegration = 1.5 - 2 hrs

Acidity (pKa) 4.48
Hazards
NIOSH (US health exposure limits):
PEL (Permissible)
 Disintegration temp = 302 - 305 degree

Disintegration temp = 1.5 - 2 hrs

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 ?)

Carbendazim is a widely used, systemic, broad-spectrum benzimidazole fungicide and a metabolite of benomyl. It is also employed as a casting worm control agent in amenity turf situations such as golf greens, tennis courts etc. and in some countries is licensed for that use only.

The fungicide is used to control plant diseases in cereals and fruits, including citrus, bananas, strawberries, pineapples, and pomes. It is also controversially used in Queensland, Australia on macadamia plantations. A 4.7% solution of carbendazim hydrochloride, sold as Eertavas, is marketed as a treatment for Dutch elm disease.

Studies have found high doses of carbendazim cause infertility and destroy the testicles of laboratory animals.

Maximum pesticide residue limits (MRLs) have reduced since discovering its harmful effects. The MRLs for fresh produce in the EU are now between 0.1 and 0.7 mg/kg with the exception of loquat, which is 2 mg/kg. The limits for more commonly consumed citrus and pome fruits are between 0.1 and 0.2 mg/kg.

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