Carbendazim

Chemical compound From Wikipedia, the free encyclopedia

Carbendazim is a fungicide, a member benzimidazole fungicides. It is a metabolite of benomyl.[2]

Quick facts Names, Identifiers ...
Carbendazim[1]
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 Edit this at Wikidata
KEGG
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 White to 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).
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The fungicide is used to control plant diseases in cereals and fruits, including citrus, bananas, strawberries, macadamia nuts, pineapples, and pomes.[3] A 4.7% solution of carbendazim hydrochloride, sold as Eertavas, is marketed as a treatment for Dutch elm disease.[4]

Other uses

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.[5]

Safety, regulation, controversy

High doses of carbendazim destroy the testicles of laboratory animals.[6][7]

Maximum pesticide residue limits (MRLs) for fresh produce in the EU are between 0.1 and 0.7 mg/kg with the exception of loquat fruits, which is set at 2 mg/kg.[8] The limits for more commonly consumed citrus and pome fruits are between 0.1 and 0.2 mg/kg.

Use of this fungicide on macadamia plantations has proven controversial in Queensland.[4]

It is used in Australia,[9] Uganda,[10] and the USA.[9]

References

External links

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