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Pyraclostrobin
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PYRACLOSTROBIN 吡唑醚菌酯

Introduction: Pyraclostrobin is a broad spectrum foliar fungicide in the strobilurin chemical class. The strobilurin fungicides act through inhibition of mitochondrial respiration by blocking electron transfer within the respiratory chain, which in turn causes important cellular biochemical processes to be severely disrupted, and results in cessation of fungal growth.

Common name: Pyraclostrobin

another name: Pyraclostrobine, Headline, Cabrio, Pyrachlostrobin

Chemical Name: methyl N-[2-[[1-(4-chlorophenyl)pyrazol-3-yl]oxymethyl]phenyl]- N-methoxycarbamate

Empirical formula: C19H18ClN3O4

Structural formula:

Mol. Weight: 387.82 g/mol

 

CAS No.: 175013-18-0

 

Specifications

Leading Thiobencarb supplier

Pyraclostrobin 20% WP

Pyraclostrobin 250 g/L EC

Pyraclostrobin 250 g/L SC

Pyraclostrobin 97% TC

Pyraclostrobin 98% TC

 

Packing:

BULK PACKING                                                     

Powder: 25KG/Bag, 25KG/Drum, 50KG/Drum etc.                    

Liquid: 200L/Drum, 20L/Drum, 10L/Drum ect.

SMALL PACKING

Powder: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc. 

Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc.

 

Customerized Packing label

Pyraclostrobin FAO standard

Professional registration

 

HAZARDS IDENTIFICATION

Hazard statement(s)

H315: Causes skin irritation

H331: Toxic if inhaled

H410: Very toxic to aquatic life with long lasting effects

Precautionary statement(s)

P261: Avoid breathing dust/fume/gas/mist/vapors/spray.

P264: Wash ... thoroughly after handling.

P271: Use only outdoors or in a well-ventilated area.

P273: Avoid release to the environment.

P280: Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352: IF ON SKIN: wash with plenty of water.

P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P311: Call a POISON CENTER or doctor/...

P312: Call a POISON CENTER or doctor/... if you feel unwell.

P321: Specific treatment (see ... on this label).

P332+P313: IF SKIN irritation occurs: Get medical advice/attention.

P362: Take off contaminated clothing.

P391: Collect spillage.

P403+P233: Store in a well-ventilated place. Keep container tightly closed.

P405: Store locked up.

P501: Dispose of contents/container to ...

Supplemental Hazard Statements: none

 

MAMMALIAN TOXICOLOGY

Acute oral LD50 for rat: >5000 a.i.mg/kg

Acute dermal LD50 for rat: >2000 a.i.mg/kg

Inhalation LC50 (4h) for rat: >0.69 a.i. mg/L

Non-irritating to skin and eyes (rabbits).

Not a skin sensitiser (guinea pigs).

 

ADI (JMPR): 0.03 mg/kg b.w. [2003]

 

There was no evidence of carcinogenicity, genotoxic, or neurotoxic; azoxystrobin has no effect on fertility parameters nor on foetal or infant development.

 

Toxicity class WHO (a.i.): NL

Xi - Irritant: R38; N - Dangerous for the environment: R51, R53

 

ECOTOXICOLOGY

Birds: Acute oral LD50 for Colinus virginianus >2000 a.i.mg/kg.

Fish: Acute 96 h LC50 for Oncorhynchus mykiss is 0.006 a.i.mg/L.

Aquatic invertebrates: Acute 48 hour EC50 for Daphnia magna is 0.016 a.i.mg/L.

Algae: Acute 72 hour EC50 for Pseudokirchneriella subcapitata > 0.843 a.i.mg/L.

Honeybees: Contact acute 48 h LD50 >100 a.i.μg/bee; Oral acute 48 hour LD50 >73.1 a.i.μg/bee.

Earthworms: Acute 14 day LC50 for Eisenia foetida is 567 a.i.mg/kg.

 

ENVIRONMENTAL FATE

Pyraclostrobin's production may result in its release to the environment through various waste streams; its use as a fungicide will result in its direct release to the environment. If released to air, a vapor pressure of 1.95×10-10 mm Hg at 20 indicates pyraclostrobin will exist solely in the particulate phase in the atmosphere. Particulate-phase pyraclostrobin will be removed from the atmosphere by wet or dry deposition. A photolysis half-life of 2 hours in water has been reported. If released to soil, pyraclostrobin is expected to be immobile based upon a Koc range of 6,000 to 16,000 mL/g. Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 5.2×10-11 atm-cu m/mole. A biodegradation half-life of 2-36 days in soil suggests that biodegradation may be an important environmental fate process. If released into water, pyraclostrobin is expected to adsorb to suspended solids and sediment based upon the Koc values. Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant. An estimated BCF of 230 suggests the potential for bioconcentration in aquatic organisms is high. Pyraclostrobin is stable to hydrolysis in water. Occupational exposure to pyraclostrobin may occur through inhalation and dermal contact with this compound at workplaces where pyraclostrobin is produced or used.

 

Usage:

Pyraclostrobin was developed by BASF SE to control major plant pathogens in cereals and other crops.

 

Application:

Pyraclostrobin Mode of action Fungicide with protectant, curative, and translaminar properties. Uses Under development for control of major plant pathogens, such as Septoria tritici, Puccinia spp., and Drechslera tritici-repentis, Pyrenophora teres in cereals, Mycosphaerella spp. in peanuts, Septoria glycines, Cercospora kikuchii, and Phakopsora pachyrhizi in soya beans, Plasmopara viticola, Uncinula necator in grapes, Phytophthora infestans, Alternaria solani in potatoes and tomatoes, Mycosphaerella fijiensis in bananas, Elsino fawcettii, and Guignardia citricarpa in citrus and Rhizoctonia solani, and Pythium aphanidermatum in turf. Application rates are expected to be 50-250 g/ha for food crops and 280-560 g/ha for turf.



 
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