Chemical Identification
Common Name
4-amino-3,5,6-trichloropyridine-2-carboxylic acid
4-amino-3,5,6-trichloropicolinic acid
4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid
Molecular Formula
Molecular Structure
Premix Parters: S-bioallethrin; S-bioallethrin beta-cyfluthrin; S-bioallethrin deltamethrin; S-bioallethrin permethrin; chlorpropham pyrethrins; cyfluthrin propoxur tetramethrin; lambda-cyhalothrin tetramethrin; cypermethrin; cypermethrin tetramethrin; permethrin; permethrin tetramethrin; pyrethrins; tetramethrin;
Physical Properties
Molecular weight:241.5; Physical form:Colourless powder, with a chlorine-like odour. Composition:Tech. is 79.5%. Melting point:Decomposes at c. 215 °C without melting; Vapour pressure:8.4 × 10-2 mPa (25 °C); Henry constant:4.7 × 10-5 Pa m3 mol-1; Partition coefficient(n-octanol and water):logP = 1.9 (20 °C, 0.1N HCl, i.e. neutral species); pKa:2.3 (22 °C); Solubility:In water 430 mg/l (25 °C). In acetone 19.8, ethanol 10.5, isopropanol 5.5, acetonitrile 1.6, diethyl ether 1.2, dichloromethane 0.6, benzene 0.2, carbon disulfide <0.05 (all in g/l, 25 °C).; Stability:Very stable to acids and alkalis, but decomposed by hot concentrated alkalis. Readily forms water-soluble alkali-metal and amine salts. In aqueous solution, decomposed by u.v. irradiation, DT50 2.6 d (25 °C).
Oral:Acute oral LD50 for male rats >5000, mice 2000-4000, rabbits c. 2000, guinea pigs c. 3000, sheep >1000, cattle >750 mg/ kg. Percutaneous:Acute percutaneous LD50 for rabbits >2000 mg/kg. Moderate eye irritant; mild skin irritant (rabbits). No skin sensitisation. Inhalation: LC50 for male and female rats >0.035 mg/l (picloram); >1.63 mg/l (potassium salt); >0.035 mg/l (isooctyl ester); >0.07 mg/l (triisopropylammonium
Environmental Profile
Algae: EC50 for Selenastrum 36.9 mg/l.Bees: LD50 for honeybees >100µg/bee.Birds:Acute oral LD50 for chicks c. 6000 mg/kg. LC50 for mallard ducks, bobwhite quail >5000 mg/ kg diet.Daphnia:LC50 34.4 (picloram); 63.8 (potassium salt) (both in mg/l).Fish:LC50 (96 h) for rainbow trout 5.5 (picloram); 26 (potassium salt); 41.4 (triethylammonium salt); 51 (triisopropanolammonium salt) (all in mg/l); for bluegill sunfish 14.5 (picloram); 109 (triisopropanolammoniumWorms:Practically non-toxic to earthworms.Other aquatic spp.:LC50 for pink shrimp 10.3 mg/l. 

Environmental fate: 
Once in the plant or in the environment, all salt and ester forms are readily converted to picloram acid. For reviews of picloram in the environment, see M. Mayes & G. R. Oliver, "An Aquatic Hazard Assessment: Picloram", Aquatic Toxicology and Hazard AsseAnimals:In mammals, following oral administration, picloram is rapidly excreted in an unchanged form.Soil:Degraded by light, more rapidly on the soil surface or in clear, moving water. Degraded slowly by soil micro-organisms, DT50 30-90 d. Rate of degradation in soil strongly proportional to application rate. Aqueous photodegradatioPlant:On plant surfaces, photodecomposition occurs, possibly with cleavage of the pyridine ring. WATER SOLUBILITY: 0.056 g/100 ml at 20° C
Transport Information
Signal Word:WARNING; Hazard Class:II(Moderately hazardous)

Porduct NewsMore

AllierBrasil registered CAMPESTRE® 240 SL in Brazil


Nufarm registers herbicide Tibet in Brazil

Fluroxypyr Picloram

AllierBrasil registered herbicide STATION 240 SL in Brazil


Yongnong receives registration for picloram in Brazil


Related CompaniesMore

Jadesheen Chemical Co., Ltd.

Country:  China

Picloram Glyphosate 2,4-D Paraquat Lufenuron Chlorpyrifos Chlorothalonil Imidacloprid Cymoxanil Metalaxyl+Cuprous Oxide

Nutrichem Company Limited

Country:  China

Oxyfluorfen Tebuconazole Metolachlor Azoxystrobin Clopyralid Triclopyr Tebuthiuron Acifluorfen Clethodim Imazapyr Picloram Pretilachlor Bifenthrin Amitraz Mesotrione

Jiangsu Weunite Fine Chemical Co., Ltd.

Country:  China

Nitenpyram Azoxystrobin Chlorothalonil Acetamiprid Imidaclorprid Bentazone Carbendazim Chlorfenapyr Chlorthal-dimethyl Metaldehyde

Rainbow Agro

Country:  China

Glufosinate-ammonium 2,4-D MCPA Dicamba Propanil Clethodim Glyphosate Captan Flumioxazin Sulfentrazone

Lier Chemical Co., Ltd.

Country:  China

Fluroxypyr-meptyl Clodinafop-propargyl Glufosinate-ammonium Picloram Clopyralid Triclopyr-butotyl Flumioxazin Triclopyr Diquat Epoxiconazole