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108-34-9

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Basic Information
CAS No.: 108-34-9
Name: Pyrazoxon(content>5%)
Molecular Structure:
Molecular Structure of 108-34-9 (Pyrazoxon(content>5%))
Formula: C8H15 N2 O4 P
Molecular Weight: 234.22
Synonyms: Phosphoricacid, diethyl 5-methylpyrazol-3-yl ester (6CI,7CI,8CI); Diethyl3-methyl-5-pyrazolyl phosphate; G 24483; O,O-Diethyl O-(3-methyl-5-pyrazolyl)phosphate; O,O-Diethyl O-(3-methyl-5-pyrazolyl) phosphate; Pyrazoxon;Pyrazoxone
Density: 1.248g/cm3
Boiling Point: 331.4°Cat760mmHg
Flash Point: 154.2°C
Hazard Symbols:
Risk Codes: 26/27/28
Safety: Poison by ingestion and subcutaneous routes. When heated to decomposition it emits very toxic fumes of NOx and POx.
PSA: 83.25000
LogP: 2.27800
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    Pyrazoxon(content>5)

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    Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

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    Pyrazoxon(content>5%)

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    Shanghai, Run-Biotech Co., Ltd is a leading domestic pharmaceutical, biopharmaceutical, and health care products R & D outsourcing services company. As an innovation-driven and customer-focused company, Run Biotech provides a broad and integrated por

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Chemistry

Molecule structure of Methylpyrazolyl diethylphosphate (CAS NO.108-34-9) :

IUPAC Name: diethyl (5-methyl-1H-pyrazol-3-yl) phosphate 
Molecular Weight: 234.189461 g/mol
Molecular Formula: C8H15N2O4
Density: 1.248 g/cm3 
Boiling Point: 331.4 °C at 760 mmHg 
Flash Point: 154.2 °C
Index of Refraction: 1.493
Molar Refractivity: 54.54 cm3
Molar Volume: 187.6 cm3
Polarizability: 21.62*10-24 cm3
Surface Tension: 45 dyne/cm 
Enthalpy of Vaporization: 55.13 kJ/mol 
log P (octanol-water): 0.760 
Water Solubility: 1000 mg/L 
Vapor Pressure: 1.15E-05 mm Hg 
Henry's Law Constant: 1.23E-10 atm-m3/mole 
Atmospheric OH Rate Constant: 2.13E-10 cm3/molecule-sec
XLogP3-AA: 1.1
H-Bond Donor: 1
H-Bond Acceptor: 5
Rotatable Bond Count: 6
Tautomer Count: 2
Exact Mass: 234.076943
MonoIsotopic Mass: 234.076943
Topological Polar Surface Area: 73.4
Heavy Atom Count: 15
Complexity: 229
Canonical SMILES: CCOP(=O)(OCC)OC1=NNC(=C1)C
InChI: InChI=1S/C8H15N2O4P/c1-4-12-15(11,13-5-2)14-8-6-7(3)9-10-8/h6H,4-5H2,1-3H3,(H,9,10)
InChIKey: CDCTYRNLXFEDHC-UHFFFAOYSA-N

Toxicity Data With Reference

1.    

scu-rat LD50:7 mg/kg

    JEENAI    Journal of Economic Entomology. 50 (3)(1957),356.
2.    

orl-mus LD50:4 mg/kg

    ARSIM*    Agricultural Research Service, USDA Information Memorandum. 20 (1966),17.
3.    

orl-bwd LD50:40 mg/kg

    TXAPA9    Toxicology and Applied Pharmacology. 21 (1972),315.

Safety Profile

Poison by ingestion and subcutaneous routes. When heated to decomposition it emits very toxic fumes of NOx and POx.
Hazard Codes: VeryT+
Risk Statements: 26/27/28 
R26/27/28:Very toxic by inhalation, in contact with skin and if swallowed.
Safety Statements: 13-28-45 
S13:Keep away from food, drink and animal foodstuffs. 
S28:After contact with skin, wash immediately with plenty of soap-suds. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

Specification

 Methylpyrazolyl diethylphosphate (CAS NO.108-34-9) is also called 3-Methylpyrazolyl-5-diethylphosphate ; AI3-24723 ; Diethyl 3-methyl-5-pyrazolyl phosphate ; ENT 24,723 ; G-24483 ; Geigy G-24483 ; O,O-Diaethyl-O-(3-methyl-1H-pyrazol-5-yl)-phosphat [German] ; O,O-Diethyl O-(3-methyl-5-pyrazolyl) phosphate ; O,O-Diethyl-O-(3-methyl-1H-pyrazol-5-yl)-fosfaat [Dutch] ; O,O-Dietil-O-(3-metil-1H-pirazol-5-il)-fosfato [Italian] ; Phosphate de diethyle et de 3-methyl-5-pyrazolyle ; Phosphate de diethyle et de 3-methyl-5-pyrazolyle [French] ; Phosphoric acid, diethyl-(3-methyl-5-pyrazolyl) ester ; Phosphoric acid, diethyl-, 3-methylpyrazole-5-yl ester ; Pirazoxon ; Pyrazol-3(or 5)-ol, 5(or 3)-methyl-, diethyl phosphate ; Pyrazoxon ; Pyrazoxone . Methylpyrazolyl diethylphosphate (CAS NO.108-34-9) is high toxic. It is flammable by fire. It will produce toxic nitrogen oxide, phosphorus oxide gas by heat. So the storage environment should be ventilate, low-temperature and dry. Keep Methylpyrazolyl diethylphosphate (CAS NO.108-34-9) separate from raw materials of food.