NOMENCLATURE  
Common name   clopyralid (BSI, ANSI, draft E-ISO, (m) draft F-ISO); 3,6-dichloropicolinic acid (WSSA, Canada, Finland and, until 1984, BSI; name accepted in lieu of a common name); acide dichloro-3,6 picolinique (France and, until 1984, F-ISO; name accepted in lieu of a common name)
IUPAC name  3,6-dichloropyridine-2-carboxylic acid
Chemical Abstracts name 3,6-dichloro-2-pyridinecarboxylic acid 
CAS RN  [1702-17-6]  EEC no. 216-935-4

APPLICATIONS  
Mode of action
Selective systemic herbicide, absorbed by the leaves and roots, with translocation both acropetally and basipetally, and accumulation in meristematic tissue. Exhibits an auxin-type reaction. Acts on cell elongation and respiration.
Uses
Post-emergence control of many annual and perennial broad-leaved weeds of the families Polygonaceae, Compositae, Leguminosae, and Umbelliferae, in sugar beet, fodder beet, oilseed rape, maize, brassicas, onions, leeks, strawberries, flax and grassland. Provides particularly good control of creeping thistle (Cirsium arvense), perennial sow-thistle, coltsfoot, mayweeds, and Polygonum spp.

Formulation types 
Clopyralid 30%SC
Clopyralid 30%SL

Packing details 
10ML ~200L for liquid formulations, 1G~25KG for solid formulations.