36795

Sethoxydim

PESTANAL^®, analytical standard

• Empirical Formula (Hill Notation): C₁₇H₂₉NO₃S
• CAS Number: 74051-80-2
• Molecular Weight: 327.48
• UNSPSC Code: 41116107
• NACRES: NA.24
• PubChem Substance ID: 329755513
• EC Number: 277-682-3
• Beilstein/REAXYS Number: 8222943
• MDL number: MFCD03792698

Properties

• grade: analytical standard
• Quality Level: 100
• product line: PESTANAL^®
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable, gas chromatography (GC): suitable
• application(s): agriculture; environmental
• format: neat
• storage temp.: −20°C
• SMILES string: CCC\C(=N/OCC)C1=C(O)CC(CC(C)SCC)CC1=O
• InChI: 1S/C17H29NO3S/c1-5-8-14(18-21-6-2)17-15(19)10-13(11-16(17)20)9-12(4)22-7-3/h12-13,19H,5-11H2,1-4H3/b18-14+
• InChI key: CSPPKDPQLUUTND-NBVRZTHBSA-N

Description

General description

Sethoxydim is a grass-active herbicide that is very effective for postemergence control of annual and perennial grasses. Sethoxydim belongs to the cyclohexanediones family and is mainly applied to broad-leaved crops, including cotton, oilseed rape, soybeans, sugar beets, fodder beets, sunflowers, spinach, potatoes, tobacco, peanuts, strawberries, alfalfa, flax, and vegetables. The herbicide act by inhibiting plastid acetyl-CoA carboxylase (ACCase) of monocotyledonous species, causing chloroplast bleaching, tissue necrosis, growth reduction, and ultimately death of a plant.

Sethoxydim is not approved for its use in the European Union. Maximum residue levels (MRLs) have been set according to Reg (EC) No 839/2008 for sethoxydim (to be calculated as the sum of sethoxydim and clethodim including degradation products) for various products of plant and animal origin from 0.05 to 1 mg/kg.

Application

The analytical standard can be used to:

• Study the inhibition effect of acetyl-CoA carboxylase in barley chloroplasts using cycloxydim, sethoxydim, and clethodim herbicides
• Study the photochemical changes and oxidative damage in four foxtail millet varieties after exposure to sethoxydim
• Study the resistance mechanism of chloroplastic acetyl-CoA carboxylase from green foxtail (Setaria viridis L. Beauv.) towards cyclohexanedione herbicide sethoxydim
• Study the inhibition mechanism of acetyl-CoA carboxylase by sethoxydim and haloxyfop using a semipurified enzyme preparation extracted from black Mexican sweet maize
• Evaluate the tolerance of 11 grass species used in minimal-to-no-mow turf areas to three postemergence herbicides applied at one- and twofold recommended label rates
• Generate sethoxydim-resistant mutants of Micractinium sp. by UV-C mutagenesis for increased cellular triacylglycerol (TAG) without compromising on growth rate

Legal Information

PESTANAL is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS09
• hcodes: H411
• pcodes: P273 - P391 - P501
• Hazard Classifications: Aquatic Chronic 2
• Storage Class: 10 - Combustible liquids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)