55335-06-3 Usage
Description
Triclopyr is a selective post-emergence herbicide, which is a monocarboxylic acid with the chemical structure of (pyridin-2-yloxy)acetic acid substituted by chloro groups at positions 3, 5, and 6. It is an agrochemical used primarily for controlling various woody and broad-leaved weeds. Triclopyr is known for its effectiveness in targeting specific weeds without causing significant harm to the desired vegetation. It is a white to off-white solid and is registered for use in the U.S. and EU countries.
Uses
Used in Agriculture:
Triclopyr is used as a systemic herbicide for controlling broadleaf weeds and woody plants in various agricultural settings. It is particularly effective when used on rice, range land, pasture, rights-of-way, forestry, and grasslands, including home lawns. Triclopyr is typically available in the form of a triclopyr butoxyethyl ester (BEE) or as a triclopyr triethylamine salt (TEA). Some products containing Triclopyr may be classified as Restricted Use Pesticides (RUP) due to their potential environmental impact.
Used in Regulatory Compliance:
Triclopyr is subject to maximum allowable residue levels in the U.S., as outlined in the Code of Federal Regulations (CFR). These regulations ensure that the herbicide and its metabolites, such as 3,5,6-trichloro-2-pyridinol and 2-methoxy-3,5,6-trichloropyridine, do not exceed specified limits in or on various raw agricultural commodities. For example, the maximum allowable residue levels for Triclopyr and its metabolites are as follows:
Fish: 3.0 ppm
Grass, forage, and hay: 500 ppm
Shellfish: 3.5 ppm
Egg: 0.05 ppm
Meat, fat, and meat byproducts (except kidney and liver) of cattle, goat, hog, horse, and sheep: 0.05 ppm
Meat, fat, and meat byproducts of poultry: 0.1 ppm
Milk: 0.01 ppm
Liver and kidney of cattle, goat, hog, horse, and sheep: 0.5 ppm
Rice, grain: 0.3 ppm
Rice, straw: 10.0 ppm
These regulations help maintain the safety and quality of agricultural products, ensuring that the use of Triclopyr as a herbicide does not pose significant risks to human health or the environment.
Trade name
[Note: See the following record, Triclopyr,
triethylamine salt, for trade names containing the salt of
triclopry] ACCESS?; CROSSBOW?, (triclopyr + 2,4-D
ester); ET?; GARLON?; GRAZON? Triclopyr;
PATHFINDER?; REDEEM?; RELY?; REMEDY?;
RIVERDALE TAHOE? Nufarm (Australia); TURFLON?
Safety Profile
Moderately toxic by ingestion. Anexperimental teratogen. Experimental reproductiveeffects. Used as an herbicide. When heated todecomposition it emits toxic fumes of Clí and NOx.
Environmental Fate
Soil. In soil, triclopyr degraded to 3,5,6-trichloro-2-pyridinol and 2-methoxy-3,5,6-
trichloropyridine (Norris et al., 1987). The major route of dissipation from soil is likely
due to microbial degradation (Newton et al., 1990).Fifty-four days after triclopyr was applied to soil at a rate of 5.6 kg/ha, the majority
(65%) remained in the top 10 cm of soil (Lee et al., 1986a).Ashton and Monaco (1991) reported triclopyr had an average half-life of 46 days and
is in?uenced by soil type and climatic conditions.Plant. Lewer and Owen (1989) found 3,5,6-trichloro-2-pyridinol as the major metab-
olite in plants. Cultured soybean cells metabolized triclopyr to dimethyl triclopyr-aspartate
and dimethyl triclopyr-glutamate which can be rehydrolyzed to form the parent compound.At an application rate of 3.4 kg/ha, the dissipation half-life was 3.7 days. At an
application rate of 3.3 kg/ka, the dissipation half-lives of triclopyr in brown, browse and
litter samples were 73.5, 202.3 and 31 days, respectively (Norris et al., 1987).
Metabolic pathway
After 7 days in a soybean cell suspension culture, the
major metabolites of trichlopyr are formed and
identified as the aspartate (major) and glutamate
(minor) amide conjugates.
Metabolism
The average half-life of triclopyr
in soil is 46 days. Because triclopyr is sensitive to light,
the length of time that it remains on the surface may
moderate its persistence. Adsorption to soil is limited and
is governed by the anion exchange capacity. Insignificant
amounts are lost via volatilization. The propensity of
triclopyr to translocate in the environment with soil water,
is unknown.
Toxicity evaluation
The acute oral LD50 of triclopyr
is 692 mg/kg and 577 mg/kg for male and female rat,
respectively. It does not appear to undergo significant
transformation and is excreted in the urine primarily
unchanged.
Check Digit Verification of cas no
The CAS Registry Mumber 55335-06-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,3 and 5 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55335-06:
(7*5)+(6*5)+(5*3)+(4*3)+(3*5)+(2*0)+(1*6)=113
113 % 10 = 3
So 55335-06-3 is a valid CAS Registry Number.
InChI:InChI=1/C7H4Cl3NO3/c8-3-1-4(9)7(11-6(3)10)14-2-5(12)13/h1H,2H2,(H,12,13)
55335-06-3Relevant articles and documents
Monitoring of the organophosphate pesticide chlorpyrifos in vegetable samples from local markets in Northern Thailand by developed immunoassay
Hongsibsong, Surat,Prapamontol, Tippawan,Xu, Ting,Hammock, Bruce D.,Wang, Hong,Chen, Zi-Jian,Xu, Zhen-Lin
, p. 1 - 14 (2020)
Chlorpyrifos is an organophosphate pesticide that is wildly used among farmers for crop protection. However, there are concerns regarding its contamination in the environment and food chain. In the present study, an in-house indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) specific for detecting chlorpyrifos is developed and validated against gas chromatography–flame photometric detection (GC-FPD) as the conventional method. The developed ic-ELISA was used for detecting chlorpyrifos residue in vegetable samples. The developed ic-ELISA showed good sensitivity to chlorpyrifos at an IC50 of 0.80 μg/kg, with low cross-reactivity to other organophosphate pesticides. The 160 samples were collected from local markets located in the Chiang Rai, Chiang Mai, and Nan provinces in northern Thailand. The positive rate of chlorpyrifos residues in the vegetable samples was 33.8percent, with the highest levels found in cucumbers, coriander, and morning glory, at 275, 145, and 35.3 μg/kg, respectively. The highest median levels of chlorpyrifos found in the detected samples were Chinese cabbage (332 μg/kg), cucumber (146.3 μg/kg) and Chinese Kale (26.95 μg/kg). The developed ic-ELISA is suitable for the rapid quantitation of chlorpyrifos residues.
NEW TYPE OF CYTIDINE DERIVATIVE AND APPLICATION THEREOF
-
, (2017/09/05)
The present disclosure provides a new cytidine derivative having the general formula (I), and applications thereof: R1 As demonstrated by experiments on the growth inhibition effect of the new cytidine derivative of the present invention on HCT-116 colon cancer xenografts in tumor-bearing nude mice , the compound of the present invention has high anti-tumor activity, data of impacts on weight of nude mice bearing human colon cancer HCT-116 and data of mortality rate showed that the toxicity of the compound is comparatively low.
3. 5, 6 - trichloro pyrrole oxygen acetic acid and its salt preparation method
-
Paragraph 0047-0050, (2017/05/23)
The invention discloses a method for preparing 3, 5, 6-trichlopyr and a salt thereof. The method comprises the following steps: by taking trichloropyridine alkoxide as a raw material, under the condition of an alkaline environment and a catalyst, performing synthetic reaction with the chloroacetic acid alkali salt, further condensing by a solvent, cooling-crystallizing and separating to obtain 3, 5, 6-trichlopyr salt with percentage of more than 99.0%, carrying out oxidized decolouring and acidifying by an inorganic salt, and filtering and rinsing to obtain the 3, 5, 6-trichlopyr white crystal with percentage of more than 99.0%. Compared with the prior art, the method is synthesized by a one-step method and is simple in process; the solvent is recycled and the unit capacity wastewater discharge volume is greatly reduced; a high-quality, low-energy consumption and eco-environment-friendly production process for preparing 3, 5, 6-trichlopyr and the salt thereof is provided.
