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PYRAZOPHOS

PYRAZOPHOS
PYRAZOPHOS structure
CAS No.
13457-18-6
Chemical Name:
PYRAZOPHOS
Synonyms
AFUGAN;Curamil;hoe2873;Missile;Siganex;HOE 2873;AFUGAN(R);carbonyl-;PYRAZOFOS;PYRAZOPHOS
CBNumber:
CB3397211
Molecular Formula:
C14H20N3O5PS
Formula Weight:
373.36
MOL File:
13457-18-6.mol

PYRAZOPHOS Properties

Melting point:
51℃
Density 
1.38±0.1 g/cm3(Predicted)
vapor pressure 
2.2 x 10-4 Pa (50 °C)
storage temp. 
APPROX 4°C
form 
neat
Water Solubility 
4.2 mg l-1 (25 °C)
pka
-1.37±0.40(Predicted)
Merck 
13,8052
BRN 
577209
EWG's Food Scores
1
FDA UNII
BEG0A8I17D
EPA Substance Registry System
Pyrazophos (13457-18-6)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS06,GHS09
Signal word  Danger
Hazard statements  H301-H332-H410
Precautionary statements  P273-P301+P310-P501
Hazard Codes  Xn,N
Risk Statements  20/22-50/53
Safety Statements  36/37-46-60-61
RIDADR  2783
WGK Germany  3
RTECS  TF2035000
HazardClass  6.1(b)
PackingGroup  III
Toxicity LD50 in rats, marmots, rabbits (mg/kg): 140, 184, 435 orally (Smit)

PYRAZOPHOS price More Price(1)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 45648 Pyrazophos PESTANAL 13457-18-6 250mg $97.2 2021-03-22 Buy

PYRAZOPHOS Chemical Properties,Uses,Production

Uses

Fungicide.

Uses

Pyrazophos is a systemic fungicide that provides both protective and curative control of various fungal diseases such as powdery mildew (Podosphaera) on apples, stone fruits, bush fruits and strawberries, Erysiphe in cucurbits and tomatoes, Uncinula on vines and leaf blotch (Rhynchosporium) in cereals.

Definition

ChEBI: A member of the class of pyrazolopyrimidines that is the ethyl ester of 2-[(diethoxyphosphorothioyl)oxy]-5-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid. A fungicide used to control Erysiphe, Helminthosporium and ital>Rhynchospium in cereals.

Metabolic pathway

Limited information is available to describe the degradation and metabolic fate of pyrazophos. Hydrolytic cleavage of the P-O-pyrazolopyrimidine linkage is the primary metabolic pathway. Oxidative desulfuration of pyrazophos to pyrazophos-oxon is only a minor pathway, observed in the plant metabolism study (Scheme 1).

Metabolism

Its mode of action is believed to be the inhibition of melanin biosynthesis and the development of appressoria by fungal conidia. Formulation is available as emulsifiable concentrate (EC: 30%). Application rates on Oidium spp. are in the range of 15–30 g a.i./hl.

Degradation

Pyrazophos (1) is hydrolysed in acidic or alkaline solution (PM).

PYRAZOPHOS Preparation Products And Raw materials

Raw materials

Preparation Products


PYRAZOPHOS Suppliers

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