Clopyralid

Clopyralid structural formula

CAS Number 1702-17-6
Molecular Formula C6H3Cl2NO2
Molecular Weight 192.000 g/mol
InChI Key HUBANNPOLNYSAD-UHFFFAOYSA-N
LogP 1.06
Synonyms
  • Clopyralid
  • 3,6-Dichloropyridine-2-carboxylic acid
  • 2-Pyridinecarboxylic acid, 3,6-dichloro-
  • 1702-17-6
  • 2-Pyridinecarboxylic acid, 3,6-dichloro-
  • 3,6-Dichloro-2-pyridinecarboxylic acid
  • 5-22-02-00046
  • Benzalox
  • BRN 0473755
  • Campaign
  • Caswell No. 323H
  • Cirtoxin
  • Crusader S
  • Cyronal
  • EINECS 216-935-4
  • EPA Pesticide Chemical Code 117401
  • Lontrel
  • Lontrel SF 100
  • Matrigon
  • 2-Pyridine carboxylic acid, 3,6-dichloro-
  • Reclaim
  • Lontrel 100
  • Lontrel L
  • Stinger
  • Versatill
  • Cliophar
  • Transline
  • Huiloralid
  • Clopyralide
  • Kyselina 3,6-dichlorpikolinova
  • UNII-10G14M0WDH
  • 3,6-Dichloropicolinic acid
  • Acide 3,6-dichloropicolinique
  • Acide dichloro-3,6 picolinique

Applications:


HPLC Analysis of Clopyralid
Clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) is a selective herbicide effective against broad-leaf plants such as clovers and thistle. A single residue method for the EURL (European Union Reference Laboratory) was developed for clopyralid and other acidic compounds using QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) methodology. Retention of clopyralid was controlled on both Obelisc R and a 3 micron Primesep 100 column of the same dimension. This method is LC/MS compatible and useful for separating many pesticides.

Condition 1

Column Obelisc R, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 25-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 3.0- 30-60 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 270 nm
 

Condition 2

Column Obelisc R, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 10-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 3.0- 20-60 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 270 nm
 

Condition 3

Column Primesep 100, 2.1x150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN - 10-70%, 15 min,  7 min hold
Buffer Gradient AmAc pH 3.0- 20-60 mM, 15 min,  7 min hold
Flow Rate 0.4 ml/min
Detection UV, 270 nm
 

Description

Class of Compounds  Insecticide, Herbicide, Fungicide,  Hydrophobic, Ionizable
Analyzing Compounds Clopyralid
 

Application Analytes:

Clopyralid

HPLC Separation of Pesticides, Herbicides, Fungicides and Insecticides on Newcrom BH Column
Herbicides are used to control unwanted plants, they are also known as weedkillers. Insecticides are used to kill insects. Fungicides are used to kill parasitic fungi. Pesticide is a more generic term that includes herbicides, fungicides and insecticides in its definition. All are heavily used in agriculture. By using HPLC, many different pesticides can be separated and their retention characteristics controlled using the Newcrom BH mixed-mode column. It can be used with different organic media such as acetonitrile (ACN) or methanol (MeOH). By varying the concentration of organic modifier and using different buffers like sulfuric acid (H2SO4), ammonium formate (AmFm), or formic acid, separation of desired pesticides can be achieved.

Condition

Column Newcrom BH, 3.2x100 mm, 5 µm, 100A
Mobile Phase MeCN, MeOH
Buffer H2SO4, Formic acid, AmFm pH 3.0
Flow Rate 0.6 ml/min
Detection UV 275 nm

Description

Class of Compounds Pesticides, Herbicides, Fungicides, Insecticides
Analyzing Compounds Monocrotophos, Metribuzin, Bromacil, Carbofuran, 4-Chlorophenoxyacetic acid, Bentazone, Folpet, Fenthion, Fenvalerate, Metrabuzin, Carbofuran, Atrazine, Parathion –methyl, MCPA, Clopyralid, Dicamba, Benthazon, Simazine, Diuron, MCPB, Mecoprop, 4-Chlorophenoxyacetic acid,2,4,5-T


Application Analytes:

2,4,5-Trichlorophenoxyacetic acid
4-CPA
Atrazine
Bentazone-sodium
Carbofuran
Clopyralid
Dicamba
Diuron
Fenvalerate
Folpet
MCPA
MCPB
Mecoprop
Methyl parathion
Monocrotophos
Simazine