Myclobutanil

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Myclobutanil
Kekulé, skeletal formula of myclobutanil
Names
IUPAC name
2-(4-Chlorophenyl)-2-(1,2,4-triazol-1-ylmethyl)hexanenitrile
Identifiers
3D model (JSmol)
7138849
ChEBI
ChemSpider
ECHA InfoCard 100.101.000
EC Number 410-400-0
KEGG
MeSH Systhane
RTECS number XZ5257000
UN number 3077
Properties
C15H17ClN4
Molar mass 288.78 g·mol−1
Appearance Pale, yellow, translucent crystals
Melting point 63 to 68 °C (145 to 154 °F; 336 to 341 K)
Boiling point 202 to 208 °C (396 to 406 °F; 475 to 481 K) at 130 Pa
142 mg⋅dm−3
Hazards
GHS pictograms The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The environment pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word Warning
H302, H319, H361, H411
P273, P281, P305+351+338
NFPA 704
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g., canola oilHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroformReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
1
2
0
Flash point > 100 °C (212 °F; 373 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Myclobutanil is a triazole chemical used as a fungicide.[1] It is a steroid demethylation inhibitor, specifically inhibiting ergosterol biosynthesis.[2] Ergosterol is a critical component of fungal cell membranes. When heated, myclobutanil decomposes to produce corrosive and/or toxic fumes, including carbon monoxide, carbon dioxide, hydrogen chloride, hydrogen cyanide, and nitrogen oxides.[3][4] Myclobutanil is banned in Canada, Colorado, Washington, and Oregon for the production of medical and recreational marijuana; however, despite the Canadian ban, myclobutanil has been discovered in medical marijuana produced by at least one government licensed grower.[5]

Stereoisomerism[edit]

Myclobutanil (2 stereoisomers)
(S)-Pefurazoat
(S)-configuration
(R)-Pefurazoat
(R)-configuration

References[edit]

  1. ^ Myclobutanil, PAN Pesticides Database
  2. ^ "Myclobutanil Product Sheet". Kingtai Chemicals Co.
  3. ^ GOV, NOAA Office of Response and Restoration, US. "MYCLOBUTANIL - CAMEO Chemicals - NOAA". cameochemicals.noaa.gov.
  4. ^ "Product Safety Assessment: Myclobutanil".
  5. ^ "Canadians not told about banned pesticide found in medical pot supply" – via The Globe and Mail.

External links[edit]