ChemicalBook > CAS DataBase List > Clopyralid

Clopyralid

Product Name
Clopyralid
CAS No.
1702-17-6
Chemical Name
Clopyralid
Synonyms
3,6-DICHLOROPICOLINIC ACID;lontrel;reclaim;format;shield;LONCID;cyronal;3,6-DCP;cirtoxin;campaign
CBNumber
CB7186620
Molecular Formula
C6H3Cl2NO2
Formula Weight
192
MOL File
1702-17-6.mol
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Clopyralid Property

Melting point:
151-152°C
Boiling point:
0°C
Density 
1.4313 (rough estimate)
refractive index 
1.6100 (estimate)
Flash point:
0°C
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
DMSO: Slightly Soluble
pka
2.02±0.25(Predicted)
form 
Solid
color 
White to Light yellow to Light orange
Water Solubility 
1.0 g/L
Merck 
14,2400
BRN 
473755
LogP
1.060
CAS DataBase Reference
1702-17-6(CAS DataBase Reference)
EPA Substance Registry System
Clopyralid (1702-17-6)
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Safety

Hazard Codes 
Xi;N,Xi,N,X
Risk Statements 
41-51/53
Safety Statements 
26-30-61-39
RIDADR 
UN 3077
WGK Germany 
3
RTECS 
TJ7550700
TSCA 
Yes
HazardClass 
9
PackingGroup 
III
HS Code 
2933399990
Hazardous Substances Data
1702-17-6(Hazardous Substances Data)
Toxicity
LD50 in male, female rats (mg/kg): >5000, 4300 orally; LC50 (96 hr) to rainbow trout: 103.5 mg/l (Brown, Uprichard)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H318Causes serious eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
36758
Product name
Clopyralid
Purity
PESTANAL
Packaging
250mg
Price
$68.1
Updated
2024/03/01
TCI Chemical
Product number
D4117
Product name
3,6-Dichloro-2-pyridinecarboxylic Acid
Purity
>98.0%(GC)(T)
Packaging
1g
Price
$41
Updated
2024/03/01
Alfa Aesar
Product number
H27146
Product name
3,6-Dichloropyridine-2-carboxylic acid, 96%
Packaging
1g
Price
$103
Updated
2023/06/20
Alfa Aesar
Product number
H27146
Product name
3,6-Dichloropyridine-2-carboxylic acid, 96%
Packaging
5g
Price
$290
Updated
2023/06/20
Cayman Chemical
Product number
24229
Product name
Clopyralid
Packaging
100mg
Price
$32
Updated
2024/03/01
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Clopyralid Chemical Properties,Usage,Production

Description

Clopyralid is an herbicide that selectively inhibits the growth of the broadleaf weed L. palustris over a panel of 17 New Zealand native non-broadleaf plant species when applied at a concentration of 1.5 mg/L. It does not inhibit growth of human pluripotent stem cells (IC50 = >100 μM) or decrease nuclear translocation of the transcription factor SOX17, a marker of teratogenic risk. In vivo, clopyralid induces brain defects in rabbits, but not rats, when administered at a dose of 250 mg/kg.

Chemical Properties

White Crystalline Solid

Chemical Properties

Odorless and colorless crystalline solid. Odorless. Available as a soluble concentrate that is usually mixed with water. Combustible

Uses

Systemic post-emergence herbicide for use in food crops and mesquite.

Definition

ChEBI: An organochlorine pesticide having a 3,6-dichlorinated picolinic acid structure.

Agricultural Uses

Herbicide: Clopyralid is used to control annual and perennial broadleaf weeds on rangeland, pastures, turf and lawns, rights-of-way and a few agricultural products such as sugar beets, oats, barley, mint and wheat.

Trade name

ACCENT®; CONFRONT®; CURTAIL®; CURTAIL M®; DOWCO®-290; HORNET®; LONTREL®; LONTREL® 3; LONTRIL® F; LONTRIL® T; MATRIGON®; MILLENNIUM®; NAF®-280; PARADIGM®; RECLAIM®; REDEEM®; RIVERDALE®; SCORPION®; STINGER®; TRANSLINE®; WIDEMATCH®; XRM-3972®

Pharmacology

Clopyralid is systemic herbicides that is actively absorbed by foliage and, is also readily absorbed through root tissues. Once absorbed, it is translocated, primarily in the phloem, throughout the entire plant. At normal field doses, this herbicide controls many broadleaf species and are selective in pasturelands and most grass crops. The exact weed spectrum and use is specific to the compound.

Potential Exposure

Clopyralid is a pyralid herbicide used to control annual and perennial broadleaf weeds on rangeland, pastures, turf, and lawns, rights-of-way and a few agricultural products such as sugarbeets, oats, barley, mint, and wheat.

Environmental Fate

Clopyralid is a relatively strong acid and water soluble, making it susceptible to leaching. Most studies, however, indicate that it is metabolized relatively quickly by soilmicrobes, significantly decreasing the amount of clopyralid that is available for this process. Clopyralid is dissociated in soil because of its low pKa, and thus, its adsorption to most soils is weak and governed by the anion exchange capacity. Soils with relatively large anion exchange capacities will bind relatively large quantities of clopyralid,making it biologically unavailable. Clopyralid is not volatile.

Metabolism

Chemical. Clopyralid is stable to hydrolytic decomposition in acidic conditions becoming unstable above pH 5. It does not undergo significant photolytic degradation. Clopyralid decomposes above its melting point.
Plant. Hall and Vanden Born (29) showed that clopyralid underwent substantial metabolism in tolerant Brasica napus; i.e., 70% of applied clopyralid was metabolized 144 hours after application. Themetabolites were not fully characterized. Relatively little metabolism is thought to occur in susceptible plants.
Soil. Clopyralid is readily degraded by soil microbes, e.g., the field dissipation DT50 ranges from 8 to 66 days. The major metabolic pathway in soil microbes is decarboxylation.

Shipping

UN3077 Environmentally Hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required

Toxicity evaluation

Mammalian Toxicity. Limited studies have been conducted, but, from what data exist, it appears that clopyralid is quickly excreted, unmodified, in the urine of animals. The acute oral LD50 of clopyralid in male and female rat is 3738 mg/kg and 2775 mg/kg, respectively.
Weed Resistance/Modified Crop Tolerance. Fuerst et al. (48) reported clopyralid resistance in yellow starthistle (Centaurea solstitialis). No crops with modified tolerance toward clopyralid are currently in production.

Incompatibilities

May react violently with strong oxidizers, bromine, 90% hydrogen peroxide, phosphorus trichloride, silver powders, or dust. Incompatible with silver compounds. Mixture with some silver compounds forms explosive salts of silver oxalate. Keep away from oxidizers, sulfuric acid, caustics, ammonia, aliphatic amines, alkanolamines, isocyanates, alkylene oxides, epichlorohydrin. Solutions are strong acids; corrosive to aluminum, iron, and tin. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water, and a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, sulfides (releasing heat, toxic, and possibly flammable gases), thiosulfates, and dithionites (releasing hydrogen sulfate and oxides of sulfur).

Toxics Screening Level

The Initial Threshold Screening Level (ITSL) for Clopyralid is 500 μg/m3 with an annual averaging time.

Waste Disposal

Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an Clopyralid 877 afterburner and scrubber. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers.

Clopyralid Preparation Products And Raw materials

Raw materials

Chlorine

Preparation Products

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Clopyralid Suppliers

Americas 1 Canada 1 China 266 Europe 2 France 2 Germany 5 India 8 Japan 3 New Zealand 1 Norway 1 South Korea 1 Switzerland 1 The Netherlands 2 Ukraine 2 United Kingdom 12 United States 43 Global 351
Pure Chemistry Scientific Inc.
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001-857-928-2050 or 1-888-588-9418
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AbaChemScene
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732-484-9848
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3982
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TargetMol Chemicals Inc.
Tel
+1-781-999-5354 +1-00000000000
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marketing@targetmol.com
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32161
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58
Alchem Pharmtech,Inc.
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8485655694
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sales@alchempharmtech.com
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63687
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Aladdin Scientific
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+1-+1(833)-552-7181
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sales@aladdinsci.com
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Abblis Chemicals LLC
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Cayman Chemical Company
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Chemphtec Corporation
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Redox Scientific
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Alfa Aesar
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Aagile Labs Division of Tyger Scientific
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3B Scientific Corporation
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AlliChem, LLC
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View Lastest Price from Clopyralid manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Clopyralid 1702-17-6
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-12-02
Hebei Mingeng Biotechnology Co., Ltd
Product
3,6-Dichloropicolinic Acid 1702-17-6
Price
US $200.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000kg/Month
Release date
2022-11-24
Shijiazhuang Gantuo Biotechnology Co., Ltd
Product
3,6-Dichloropicolinic acid 1702-17-6
Price
US $100.00/KG
Min. Order
25KG
Purity
HPLC≥98%
Supply Ability
1000 Kilogram/Kilograms per Week
Release date
2023-03-10

1702-17-6, ClopyralidRelated Search:

2-Chloro-5-chloromethylpyridine 2,5-PYRIDINEDICARBOXYLIC ACID 5-Chloropyridine-2-carboxylic acid 3-Aminopyridine Dichloroethane 2,6-Dichloropyridine 2-Picolinic acid Pyridine 1,3-Dichloropropene Quinolinic acid Chromium picolinate Quinclorac Dichloroacetic acid Clopyralid (2-hydroxyethyl)ammonium PICLORAM METHYL ESTER Tetrachloropyridine-2-carboxylic acid Clopyralid acid, methyl ester,CLOPYRALID METHYL ESTER Picloram

  • 3,6-dichloro-2-pyridinecarboxylicaci
  • 3,6-dichloro-picolinicaci
  • acide3,6-dcp
  • acide3,6-dichloropicolinique
  • acidedichloro-3,6picolinique(french)
  • benzalox
  • campaign
  • cirtoxin
  • cyronal
  • dowco290
  • format
  • kyselina3,6-dichlorpikolinova
  • lontrel
  • lontrel3
  • lontrelsf100
  • matrigon
  • reclaim
  • shield
  • AKOS NCG-0017
  • 3,6-DICHLORO-2-PYRIDINECARBOXYLIC ACID
  • 3,6-DICHLOROPICOLINIC ACID
  • 3,6-DICHLOROPYRIDINE-2-CARBOXYLIC ACID
  • 3,6-DCP
  • 3,6-dichloropyridine-3-carboxylic acid
  • 6-Dichloropyridine-2-carboxylic acid
  • Clopyralid 3,6-Dichloropicolinic Acid
  • TwoClopyralid
  • Clopyralld
  • 3,6-dichlorpicolinic acid
  • Clopyralid Solution, 1000ppm
  • Clopyralid SL
  • CLOPYRALID
  • DOWCO 290(R)
  • DICHLOROPYRIDINE ACID
  • LONCID
  • LONTREL (TM)
  • CLOPYRALID PESTANAL (3,6-DICHLOROPYRIDIN
  • LONTREL, 250MG, NEAT
  • 2-Pyridinecarboxylic acid, 3,6-dichloro-
  • clopyralid (ansi,bsi,iso)
  • 3,6-Dichloropicolinic acid, Clopyralid
  • 3,6-Dichloro-2-picolinic Acid
  • IWD 3523
  • Lontrel 100
  • Lontrel 300
  • Lontrel L
  • 3,6-DICHLORO-2-PYRIDINECARBOXYLIC ACID,95%
  • DICHLOROPYRIDINE ACID [3,6-DICHLOROPYRIDINE-2-CARBOXYLIC ACID ]
  • 3,6-dichloropyridine-2-carboxylic acid clopyralid
  • Clopyralid ,96%
  • Clopyralid,3,6-Dichloro-pyridine-2-carboxylic acid
  • Lontrel (TM) 250mg [1702-17-6]
  • XRM-3972
  • 3,6-dichloro-2-pyridinecarboxylate
  • Lontrel @100 μg/mL in MeOH
  • 3,6-Dichloro-2-pyridinecarboxylicAcid&gt
  • Clopyralid Standard
  • Clopyralid Solution