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| CAS No.: | 95737-68-1 |
|---|---|
| Name: | Pyriproxyfen |
| Article Data: | 5 |
| Molecular Structure: | |
|
|
|
| Formula: | C20H19NO3 |
| Molecular Weight: | 321.376 |
| Synonyms: | Pyriproxyfen [ISO:BSI];S 9138;Pyridine, 2-(1-methyl-2-(4-phenoxyphenoxy)ethoxy)- .;2-(1-Methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine;4-Phenoxyphenyl (RS)-2-(2-pyridyloxy)propyl ether;HSDB 7053;OMS 3019;SK 591; |
| EINECS: | 429-800-1 |
| Density: | 1.151 g/cm3 |
| Melting Point: | 45-47 °C |
| Boiling Point: | 462 °C at 760 mmHg |
| Flash Point: | 165.4 °C |
| Solubility: | 0.4 mg l-1 (25 °C) |
| Appearance: | White to pale yellow crystalline powder |
| Hazard Symbols: |
 N
|
| Risk Codes: | 50/53 |
| Safety: | 60-61 |
| Transport Information: | UN 3077 9/PG 3 |
| PSA: | 40.58000 |
| LogP: | 4.72020 |
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| Conditions | Yield |
|---|---|
| With sodium hydroxide In N,N-dimethyl-formamide at 50 - 110℃; Solvent; Temperature; Reagent/catalyst; | 93.9% |
- 67969-82-8
tetrafluoroboric acid diethyl ether
- 13755-29-8
sodium tetrafluoroborate
- 2362-50-7
thianthrene-5-oxide
- 95737-68-1
pyriproxyfen
| Conditions | Yield |
|---|---|
| Stage #1: tetrafluoroboric acid diethyl ether; thianthrene-5-oxide; pyriproxyfen With trifluoroacetic anhydride In acetonitrile at 0 - 25℃; for 3h; Sealed tube; Stage #2: sodium tetrafluoroborate In dichloromethane; water | 95% |
- 67969-82-8
tetrafluoroboric acid diethyl ether
- 95737-68-1
pyriproxyfen
| Conditions | Yield |
|---|---|
| With 2,3,7,8-tetrafluorothianthrene; trifluoroacetic anhydride In acetonitrile at 0 - 25℃; regioselective reaction; | 92% |
- 67969-82-8
tetrafluoroboric acid diethyl ether
- 13755-29-8
sodium tetrafluoroborate
- 95737-68-1
pyriproxyfen
| Conditions | Yield |
|---|---|
| Stage #1: tetrafluoroboric acid diethyl ether; 2,3,7,8-tetrafluorothianthrene-S-oxide; pyriproxyfen With trifluoroacetic anhydride In acetonitrile at 0 - 25℃; for 3h; Sealed tube; Stage #2: sodium tetrafluoroborate In dichloromethane; water | 92% |
| Conditions | Yield |
|---|---|
| at -78 - 20℃; Alkaline conditions; | 89% |
| Stage #1: trifluoromethylsulfonic anhydride; pyriproxyfen In dichloromethane at -78℃; for 0.5h; Inert atmosphere; Stage #2: triphenylphosphine In dichloromethane at -78℃; for 0.5h; Inert atmosphere; Stage #3: With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at -78 - 20℃; Inert atmosphere; regioselective reaction; | 61% |
- 98-86-2
acetophenone
- 95737-68-1
pyriproxyfen
| Conditions | Yield |
|---|---|
| Stage #1: pyriproxyfen With thianthrene-5-oxide; trifluoromethylsulfonic anhydride In acetonitrile at -20 - 20℃; for 0.666667h; Inert atmosphere; Schlenk technique; Stage #2: acetophenone With palladium diacetate; cesium fluoride; XPhos In N,N-dimethyl-formamide; acetonitrile at 80℃; for 11h; Inert atmosphere; Schlenk technique; regioselective reaction; | 84% |
- 358-23-6
trifluoromethylsulfonic anhydride
- 95737-68-1
pyriproxyfen
| Conditions | Yield |
|---|---|
| With potassium carbonate In acetonitrile at -40 - 25℃; for 2h; Schlenk technique; Glovebox; Inert atmosphere; | 45% |
| Conditions | Yield |
|---|---|
| Stage #1: 4-methylphenylboronic acid With copper(II) bis(trifluoromethanesulfonate) In toluene for 1h; Inert atmosphere; Glovebox; Stage #2: pyriproxyfen In toluene at 90℃; for 16h; Inert atmosphere; Sealed tube; | 6% |
| Conditions | Yield |
|---|---|
| In water at 20 - 50℃; for 26h; |
- 95737-68-1
pyriproxyfen
| Conditions | Yield |
|---|---|
| With Chiralpak IC In water; acetonitrile at 15℃; Solvent; Reagent/catalyst; Resolution of racemate; |
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- 7778-80-5Potassium sulfate
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Chemistry
Molecular structure of Pyriproxyfen (CAS NO.95737-68-1) is:
Product Name: Pyriproxyfen
CAS Registry Number: 95737-68-1
IUPAC Name: 2-[1-(4-Phenoxyphenoxy)propan-2-yloxy]pyridine
Molecular Weight: 321.36976 [g/mol]
Molecular Formula: C20H19NO3
XLogP3-AA: 4.8
H-Bond Donor: 0
H-Bond Acceptor: 4
EINECS: 429-800-1
Melting Point: 45-47 °C
Storage temp.: 0-6°C
Surface Tension: 43.8 dyne/cm
Density: 1.151 g/cm3
Flash Point: 165.4 °C
Enthalpy of Vaporization: 69.52 kJ/mol
Boiling Point: 462 °C at 760 mmHg
Vapour Pressure: 2.83E-08 mmHg at 25°C
Product Categories: Pesticide & intermediate; Insect hormone
Uses
Pyriproxyfen (CAS NO.95737-68-1) can be used to protect other crops and also be used as a treatment for cat fleas. It is a juvenile hormone analogue, preventing larvae from developing into adulthood and thus rendering them unable to reproduce.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LD50 | oral | > 5gm/kg (5000mg/kg) | Pesticide Manual. Vol. 9, Pg. 745, 1991. | |
| rat | LD50 | skin | > 2gm/kg (2000mg/kg) | Pesticide Manual. Vol. 9, Pg. 745, 1991. |
Safety Profile
Safty information about Pyriproxyfen (CAS NO.95737-68-1) is:
Hazard Codes: 
N
Risk Statements: 50/53
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 60-61
S60:This material and its container must be disposed of as hazardous waste.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN3077 9/PG 3
RTECS: UT5804000
Specification
Pyriproxyfen , its cas register number is 95737-68-1. It also can be called Pyriproxyfen [ISO:BSI] ; S 31183 ; 2-(1-Methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine ; 4-Phenoxyphenyl (RS)-2-(2-pyridyloxy)propyl ether ; HSDB 7053 ; OMS 3019 ; S 9138 ; SK 591 ; Pyridine, 2-(1-methyl-2-(4-phenoxyphenoxy)ethoxy)- . It is a colorless crystals. It is a pyridine based pesticide which is found to be effective against a variety of arthropoda.