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14214-32-5

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Basic Information
CAS No.: 14214-32-5
Name: DIFENOXURON
Article Data: 3
Molecular Structure:
Molecular Structure of 14214-32-5 (DIFENOXURON)
Formula: C16H18 N2 O3
Molecular Weight: 286.331
Synonyms: Urea,3-[p-(p-methoxyphenoxy)phenyl]-1,1-dimethyl- (8CI); C 3470; Difenoxuron;Diphenoxuron; Lironion
Density: 1.188g/cm3
Melting Point: 138.5°C
Boiling Point: 467.3oC at 760 mmHg
Flash Point: 236.4oC
Solubility: 20mg/L(20 oC)
Hazard Symbols: Xn
Risk Codes: 5574828
Safety: A poison by inhalation route. Moderately toxic by ingestion and skin contact routes. When heated to decomposition it emits toxic vapors of NOx.
PSA: 50.80000
LogP: 3.65400
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Chemistry

Molecular Structure of Lironion (CAS NO.14214-32-5):

IUPAC Name: 3-[4-(4-methoxyphenoxy)phenyl]-1,1-dimethylurea
Empirical Formula: C16H18N2O3 
Molecular Weight: 286.3257 
Index of Refraction: 1.596 
Surface Tension: 45.1 dyne/cm 
Density: 1.188 g/cm3 
Flash Point: 236.4 °C 
Enthalpy of Vaporization: 72.93 kJ/mol 
Boiling Point: 467.3 °C at 760 mmHg 
Vapour Pressure: 6.57E-09 mmHg at 25°C
Classification Code : Agricultural Chemical ; Herbicide
Synonyms of Lironion (CAS NO.14214-32-5): Difenoxuron ; difenoxurone ; 3-[4-(4-methoxyphenoxy)-phenyl]-1,1-dimethylurea ; 1,1-dimethyl-3-(4-(4-methoxyphenoxy)phenyl)urea ; 1,1-dimethyl-3-(p-(p-methoxyphenoxy)phenyl)-ure;c3470;lironion ; n-(4-(4-methoxyphenoxy)phenyl)-n,n-dimethylurea

Toxicity Data With Reference

1.    

orl-rat LD50:1 g/kg

     85AREA    Agricultural Chemicals. 2 (1977),152.
2.    

ihl-rat LC50:>660 mg/m3/6H

     PEMNDP    Pesticide Manual. 9 (1991),278.
3.    

skn-rat LD50:>2150 mg/kg

     PEMNDP    Pesticide Manual. 9 (1991),278.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

A poison by inhalation route. Moderately toxic by ingestion and skin contact routes. When heated to decomposition it emits toxic vapors of NOx.