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Cas Database |
| Name |
Pencycuron |
EINECS | 266-096-3 |
| CAS No. | 66063-05-6 | Density | 1.22 g/cm3 |
| PSA | 32.34000 | LogP | 5.38970 |
| Solubility | 0.3 mg l-1 (20 °C) | Melting Point |
129 - 134oC |
| Formula | C19H21ClN2O | Boiling Point | 528.5 °C at 760 mmHg |
| Molecular Weight | 328.842 | Flash Point | 273.4 °C |
| Transport Information | N/A | Appearance | Red liquid with a slight characteristic odor. |
| Safety | Risk Codes | N/A | |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
Monceraen250SC;Monceren;NTN 19701;Pencycuron; |
Article Data | 12 |
Pencycuron Chemical Properties
Urea, N-((4-chlorophenyl)methyl)-N-cyclopentyl-N’-phenyl- (66063-05-6) is also named as N-((4-Chlorophenyl)methyl)-N-cyclopentyl-N'-phenylurea ; Bay NTN 19701 ; [(Chlorophenyl)-methyl]-N-cyclopentyl-N'-phenylurea ; 1-(p-chlorobenzyl)-1-cyclopentyl-3-phenylurea ; Monceren ; Caswell No. 638A ; Pencycuron [BSI:ISO] ,and so on. Urea, N-((4-chlorophenyl)methyl)-N-cyclopentyl-N’-phenyl- (66063-05-6) is usually red liquid with a slight characteristic odor.
IUPAC Name: 1-[(4-Chlorophenyl)methyl]-1-cyclopentyl-3-phenylurea
CAS: 66063-05-6
Molecular Formula: C19H21ClN2O
Molecular Weight: 328.84
Molecular structure: 
EINECS: 266-096-3
Storage temp.: 0-6°C
ACD/LogD (pH 5.5): 4.82
ACD/LogD (pH 7.4): 4.82
ACD/BCF (pH 5.5): 2710.98
ACD/BCF (pH 7.4): 2711
ACD/KOC (pH 5.5): 9977.62
ACD/KOC (pH 7.4): 9977.68
H bond acceptors: 3
H bond donors: 1
Freely Rotating Bonds: 4
Index of Refraction: 1.619
Molar Refractivity: 94.28 cm3
Molar Volume: 268.6 cm3
Polarizability: 37.37 10-24cm3
Surface Tension: 52.5 dyne/cm
Density: 1.22 g/cm3
Flash Point: 273.4 °C
Enthalpy of Vaporization: 80.33 kJ/mol
Boiling Point: 528.5 °C at 760 mmHg
Vapour Pressure: 2.96E-11 mmHg at 25°C
Pencycuron Uses
Urea, N-((4-chlorophenyl)methyl)-N-cyclopentyl-N’-phenyl- (66063-05-6) is commonly used as agricultural fungicide for the control of plant diseases.
Pencycuron Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| bird - domestic | LD50 | oral | > 1gm/kg (1000mg/kg) | "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A793, Pg. 1985, | |
| chicken | LD50 | oral | > 2500mg/kg (2500mg/kg) | "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A793, Pg. 1985, | |
| dog | LD50 | oral | > 5gm/kg (5000mg/kg) | Japan Pesticide Information. Vol. (48), Pg. 16, 1986. | |
| mouse | LD50 | intraperitoneal | > 1gm/kg (1000mg/kg) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 163, 1988. | |
| mouse | LD50 | oral | > 5gm/kg (5000mg/kg) | Japan Pesticide Information. Vol. (48), Pg. 16, 1986. | |
| mouse | LD50 | skin | > 5gm/kg (5000mg/kg) | Japan Pesticide Information. Vol. (48), Pg. 16, 1986. | |
| mouse | LD50 | subcutaneous | > 1gm/kg (1000mg/kg) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 163, 1988. | |
| quail | LD50 | oral | > 2500mg/kg (2500mg/kg) | "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A793, Pg. 1985, | |
| rat | LC50 | inhalation | > 570mg/m3/4H (570mg/m3) | Japan Pesticide Information. Vol. (48), Pg. 16, 1986. | |
| rat | LD50 | intraperitoneal | 1gm/kg (1000mg/kg) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 163, 1988. | |
| rat | LD50 | oral | > 5gm/kg (5000mg/kg) | Japan Pesticide Information. Vol. (48), Pg. 16, 1986. | |
| rat | LD50 | skin | > 5gm/kg (5000mg/kg) | Japan Pesticide Information. Vol. (48), Pg. 16, 1986. | |
| rat | LD50 | subcutaneous | 1gm/kg (1000mg/kg) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 163, 1988. |
RTECS: YS6440000
Pencycuron Safety Profile
Moderately toxic by intraperitoneal and subcutaneous routes. When heated to decomposition it emits toxic vapors of NOx and Cl−.
Pencycuron Specification
Removal in wastewater treatment of Urea, N-((4-chlorophenyl)methyl)-N-cyclopentyl-N’-phenyl- (66063-05-6) can be stated as follows:
Total removal:71.19 percent
Total biodegradation:0.63 percent
Total sludge adsorption:70.56 percent
Total to Air:0.00 percent
(using 10000 hr Bio P,A,S)
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