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1754-58-1

Basic Information
CAS No.: 1754-58-1
Name: phenyl N,N'-dimethylphosphorodiamidate
Article Data: 5
Molecular Structure:
Molecular Structure of 1754-58-1 (phenyl N,N'-dimethylphosphorodiamidate)
Formula: C8H13 N2 O2 P
Molecular Weight: 200.177
Synonyms: Diamidafos;Diamidaphos; Diamidfos; Dowco 169; Nellite;O-Phenyl-N,N'-dimethyl-phosphorodiamidate
Density: 1.165±0.06 g/cm3(Predicted)
Melting Point: 103.5°C
Boiling Point: 273.8±23.0 °C(Predicted)
Flash Point: 119.4oC
Safety: Poison by ingestion and skin contact. When heated to decomposition it emits very toxic fumes of POx and NOx. A pesticide used on tobacco to control rootknot nematodes.
PSA: 60.17000
LogP: 2.39410
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Chemistry

IUPAC Name: N-[Methylamino(phenoxy)phosphoryl]methanamine
Synonyms of: Diamidafos ; Diamidaphos ; Phenyl N,N'-dimethylphosphorodiamidate ; Phosphorodiamidic acid, N,N'-dimethyl-, phenyl ester ; Nellite
InChI: InChI=1/C8H13N2O2P/c1-9-13(11,10-2)12-8-6-4-3-5-7-8/h3-7H,1-2H3,
(H2,9,10,11)
CAS NO: 1754-58-1
Molecular Formula: C8H13N2O2P
Molecular Weight: 200.174781 g/mol
Molecular Structure :
EINECS: 217-144-7
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 2
Polar Surface Area: 42.59 Å2
Index of Refraction: 1.513
Molar Refractivity: 51.62 cm3
Molar Volume: 171.7 cm3
Surface Tension: 39.9 dyne/cm
Density: 1.165 g/cm3
Flash Point: 119.4 °C
Enthalpy of Vaporization: 51.22 kJ/mol
Boiling Point: 273.8 °C at 760 mmHg
Vapour Pressure: 0.0056 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
bird - wild LD50 oral 13mg/kg (13mg/kg)   Toxicology and Applied Pharmacology. Vol. 21, Pg. 315, 1972.
rabbit LD50 oral 63mg/kg (63mg/kg)   Special Publication of the Entomological Society of America. Vol. 74-1, Pg. -, 1974.
rabbit LD50 skin 100mg/kg (100mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C216, 1991.
rat LD50 oral 140mg/kg (140mg/kg)   Special Publication of the Entomological Society of America. Vol. 74-1, Pg. -, 1974.

Safety Profile

RIDADR: 2783
HazardClass: 6.1(b)
PackingGroup: III
Poison by ingestion and skin contact. When heated to decomposition it emits very toxic fumes of POx and NOx. A pesticide used on tobacco to control rootknot nematodes.