ChemicalBook > CAS DataBase List > PYRAZOPHOS

PYRAZOPHOS

Product Name
PYRAZOPHOS
CAS No.
13457-18-6
Chemical Name
PYRAZOPHOS
Synonyms
AFUGAN;Curamil;hoe2873;Missile;Siganex;HOE 2873;AFUGAN(R);carbonyl-;PYRAZOFOS;HOE 02873
CBNumber
CB3397211
Molecular Formula
C14H20N3O5PS
Formula Weight
373.36
MOL File
13457-18-6.mol
More
Less

PYRAZOPHOS Property

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
pka
-1.37±0.40(Predicted)
Water Solubility 
4.2 mg l-1 (25 °C)
Merck 
13,8052
BRN 
577209
EPA Substance Registry System
Pyrazophos (13457-18-6)
More
Less

Safety

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)
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H332Harmful if inhaled

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P273Avoid release to the environment.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
45648
Product name
Pyrazophos
Purity
PESTANAL
Packaging
250mg
Price
$122
Updated
2024/03/01
More
Less

PYRAZOPHOS Chemical Properties,Usage,Production

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.

Uses

Pyrazophos is an anticholinesterase pesticide used on fruits and vegetables and can be determined by gas chromatography/mass spectrometry and liquid chromatography with fluorescence detection.

Uses

Fungicide.

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

13457-18-6, PYRAZOPHOSRelated Search:


  • AFUGAN
  • Afugan powder
  • AFUGAN(R)
  • ETHYL-2-DIETHOXYPHOSPHINOTHIOYLOXY-5-METHYLPYRAZOLO[1,5-A]-PYRIMIDINE-6-CARBOXYLATE
  • PYRAZOPHOS
  • Pyrazophos emulsion(content>15%)
  • Pyrazophos powder(content>55%)
  • O,O-DIETHYL-O-6-ETHOXYCARBONYL-5-METHYL-PYRAZOLO [1,5-A]PYRIMIDIN-2-YL-PHOSPHOROTHIONATE
  • 2-(O,O-Diethyl thionophosphoryl)-5-methyl-6-carbethoxy-pyrazolo(1,5a)pyrimidin
  • 2-(o,o-diethyl-thionophosphoryl)-5-methyl-6-carbethoxy-pyrazolo-(1,5a)pyrimi
  • 2-(O,O-Diethyl-thionophosphoryl)-5-methyl-6-carbethoxy-pyrazolo-(1,5-a)pyrimidine
  • carbonyl-
  • Curamil
  • Ethyl 2-[(diethoxyphosphorothioyl)oxy]-5-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate
  • Ethyl 2-hydroxy-5-methylpyrazolo(1,5-a)pyrimidine-6-carboxylate O-ester of O,O-diethylphosphorothioic acid
  • ethyl2-((diethoxyphosphinothioyl)oxy)-5-methylpyrazolo(1,5-a)pyrimidine-6-ca
  • HOE 2873
  • hoe2873
  • Hoechst 2873
  • l)pyrazolo(1,5-a)pyrimidin-2-ol
  • Missile
  • o,o-diethyl-o-(5-methyl-6-ethoxy-carbonyl-pyrazolo(1.5-a)pyrimid-2-yl)-thion
  • O,O-Diethyl-O-(5-methyl-6-ethoxy-carbonyl-pyrazolo(1.5-a)pyrimid-2-yl)-thionophosphate
  • ophosphate
  • Phosphorothioic acid, O,O-diethyl ester O-ester with (6-ethoxycarbonyl-5-methyl)pyrazolo(1,5-pyrimidin-2-ol)
  • Phosphorothioic acid, O,O-diethyl ester, O-ester with (6-ethoxycarbonyl-5-methyl)pyrazolo(1,5-a)pyrimidin-2-ol
  • PYRAZOFOS
  • PYRAZOPHOS STANDARD
  • 0,0-Diethyl ester-0-6-ethoxycarbonyl-5-methyl)-pirazol-(1,5-pyrilidin-2-ol)-thiophosphoric acid
  • pyrazophos (ISO) O,O-diethyl O-(6-ethoxycarbonyl-5-methylpyrazolo[2,3-a]pyrimidin-2-yl) phosphorothioate
  • Siganex
  • O,O-diethyl-O-(6-ethoxyearbonyl-5-methylpyrazolo[1,5α] pyrimidin-2-yl) thionophosphate
  • Pyrazophos 100mg [13457-18-6]
  • Diethyl 6-carbethoxy-5-methylpyrazolo[1,5-a]pyrimidin-2-yl phosphorothioate
  • NSC 232671
  • Pyrazophos 0.2
  • Pyrazophos Solution, 100ppm
  • phosphorothioicacid,o,o-diethylester,esterwithethyl-2-hydroxy-5-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate
  • phosphorothioicacid,o,o-diethylester,o-esterwith(6-ethoxycarbonyl-5-methy
  • phosphorothioicacid,o,o-diethylester,o-esterwith(6-ethoxycarbonyl-5-methyl)pyrazolo(1,5-a)pyrimidin-2-ol
  • Pyrazolo(1,5a)pyrimidine, 2-(O,O-diethyl thionophosphoryl)-5-methyl-6-ethoxycarbonyl-
  • pyrazolo-(1,5a)pyrimidine,2-(o,o-diethyl-thionophosphoryl)-5-methyl-6-ethoxy
  • Pyrazolo[1,5-a]pyrimidine-6-carboxylic acid, 2-[(diethoxyphosphinothioyl)oxy]-5-methyl-, ethyl ester
  • Pyrazolo[1,5-a]pyrimidine-6-carboxylic acid, 2-hydroxy-5-methyl-, ethyl ester, O-ester with O,O-diethyl phosphorothioate
  • pyrazolo[1,5-a]pyrimidine-6-carboxylicacid,2-[(diethoxyphosphinothioyl)oxy]-5-methyl-,ethylester
  • O,O-Diethyl-o-[5-methyl-6-ethoxycarbonylpyrazole [1,5a] pyrimid-2-yl] thionophosphate
  • pyrazophos (bsi,iso)afugan
  • PYRAZOPHOS PESTANAL, 250 MG
  • PYRAZOPHOS, 100MG, NEAT
  • Afugan(TM)
  • Pyrazophos@1000 μg/mL in Acetone
  • Pyrazophos @100 μg/mL in MeOH
  • Pyrazophos Solution in Methanol, 100μg/mL
  • HOE 02873
  • 13457-18-6
  • C14H20N3O5PS
  • OrganophosphorusAlphabetic
  • Fungicides