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Basic Information
CAS No.: 77458-01-6
Name: Pyraclofos
Molecular Structure:
Molecular Structure of 77458-01-6 (Pyraclofos)
Formula: C14H18ClN2O3PS
Molecular Weight: 360.801
Synonyms: O-[1-(4-Chlorophenyl)-1H-pyrazol-4-yl] O-ethyl S-propyl phosphorothioate
Density: 1.271 g/cm3 (28 C)
Melting Point: 25°C
Boiling Point: 454oC
Flash Point: 228.1°C
Solubility: 33
Hazard Symbols:
Risk Codes: R22   
Safety: A poison by ingestion and inhalation. Moderately toxic by skin contact. When heated to decomposition it emits toxic vapors of SOx, POx, NOx, and Cl.
PSA: 88.46000
LogP: 5.19230
Synthetic route
96381-04-3

sodium O-ethyl-O-[1-(4-chlorophenyl)pyrazol-4-yl]phosphorothiolate

106-94-5

propyl bromide

77458-01-6

(RS)-O-1-(4-chlorophenyl)pyrazol-4-yl O-ethyl S-propyl phosphorothioate

Conditions
ConditionsYield
In ethanol; toluene
84260-11-7

O-[1-(4-chlorophenyl)pyrazol-4-yl]-O,O-diethyl phosphite

629-19-6

Dipropyl disulfide

77458-01-6

(RS)-O-1-(4-chlorophenyl)pyrazol-4-yl O-ethyl S-propyl phosphorothioate

Conditions
ConditionsYield
With sodium hydroxide; sulfuryl dichloride In toluene
77458-30-1

1-(4-chlorophenyl)-1H-pyrazol-4-ol

7651-98-1

O-ethyl-S-propyl phosphorochloridate

77458-01-6

(RS)-O-1-(4-chlorophenyl)pyrazol-4-yl O-ethyl S-propyl phosphorothioate

Conditions
ConditionsYield
With triethylamine In acetonitrile
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