Butachlor

Butachlor
Names
Preferred IUPAC name
N-(Butoxymethyl)-2-chloro-N-(2,6-diethylphenyl)acetamide
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.041.328
EC Number
  • 245-477-8
KEGG
UNII
  • InChI=1S/C17H26ClNO2/c1-4-7-11-21-13-19(16(20)12-18)17-14(5-2)9-8-10-15(17)6-3/h8-10H,4-7,11-13H2,1-3H3
  • ClCC(=O)N(c1c(cccc1CC)CC)COCCCC
Properties[1]
C17H26ClNO2
Molar mass 311.85 g·mol−1
Appearance Light yellow oil
Density 1.0695 g/cm3
20 mg/L (20 °C)
Hazards
GHS labelling:
GHS06: ToxicGHS07: Exclamation markGHS09: Environmental hazard
Danger
H302, H317, H331, H410
P261, P264, P270, P271, P272, P273, P280, P301+P312, P302+P352, P304+P340, P311, P321, P330, P333+P313, P363, P391, P403+P233, P405, P501
Flash point 100 °C (212 °F; 373 K)[2]
Lethal dose or concentration (LD, LC):
1740 mg/kg (oral, rat)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Butachlor is a herbicide of the acetanilide class.[3] It is used as a selective pre-emergent herbicide[1] to control annual grasses and some broad-leaved weeds. It was introduced circa 1970.[4] It is extensively used in India in the form of granules and emulsifiable concentrate in rice as post emergence herbicide, and 2,699 tonnes (5,950,000 lb) was sold in India in 2005-06, declining to 372 tonnes (820,000 lb) in 2009-10.[5]

Butachlor's herbicide mode of action is to prevent formation of very long chain fatty acids; this makes its HRAC classification group J (Australia), K3 (global) and 15 (numeric).[4]

Application

Butachlor is typically applied at 1.25–2 kg/ha active ingredient.[5]

References

  1. ^ a b c Merck Index, 11th Edition, 1498
  2. ^ Butachlor at Sigma-Aldrich
  3. ^ PPDB, retrieved 2019-10-03.
  4. ^ a b PPDB, retrieved 1-2025-March
  5. ^ a b Choudhury PP, Singh R, Ghosh D and Sharma AR. 2016. Herbicide Use in Indian Agriculture. ICAR - Directorate of Weed Research, Jabalpur, Madhya Pradesh, 110 p. https://dwr.icar.gov.in/Downloads/Information_Bulletin/Information%20Bulletin%20No%20-%2022%20-%20Herbicide%20Use%20in%20Indian%20Agriculture.pdf
  • Butachlor in the Pesticide Properties DataBase (PPDB)
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