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3328-33-4

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Basic Information
CAS No.: 3328-33-4
Name: Phosphoric acid dimethyl[1-(dimethoxyphosphinyl)ethenyl] ester
Article Data: 2
Molecular Structure:
Molecular Structure of 3328-33-4 (Phosphoric acid dimethyl[1-(dimethoxyphosphinyl)ethenyl] ester)
Formula: C6H14O7P2
Molecular Weight: 260.12
Synonyms: ENT 24,415;phosphoryl phosphonate;
Density: 1.284g/cm3
Boiling Point: 292.4°Cat760mmHg
Flash Point: 144.5°C
Safety: A poison by ingestion. When heated to decomposition it emits toxic vapors of POx.
PSA: 99.91000
LogP: 2.36100
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Chemistry

IUPAC Name: 1-dimethoxyphosphorylethenyl dimethyl phosphate
Synonyms of Phosphonic acid, (1-hydroxyvinyl)-, dimethyl ester, dimethyl phosphate (CAS NO.3328-33-4): 1-(Dimethyoxyphosphinyl)vinyl dimethyl phosphate ; 4-01-00-03423 (Beilstein Handbook Reference) ; BRN 1813403 ; CP 10502 ; ENT 24,415 ; Monsanto CP-10502 ; Phosphoric acid, 1-(dimethoxyphosphinyl)ethenyl dimethyl ester ; Phosphoric acid, 1-(dimethoxyphosphinyl)ethenyl dimethyl ester (9CI)
CAS NO: 3328-33-4  
Molecular Formula of Phosphonic acid, (1-hydroxyvinyl)-, dimethyl ester, dimethyl phosphate (CAS NO.3328-33-4): C6H14O7P2 
Molecular Weight: 260.1187  
H bond acceptors: 7
H bond donors: 0
Freely Rotating Bonds: 7
Polar Surface Area: 99.91 Å2
Index of Refraction: 1.425
Molar Refractivity: 51.88 cm3
Molar Volume: 202.5 cm3
Surface Tension: 36.6 dyne/cm
Density: 1.284 g/cm3
Flash Point: 144.5 °C
Enthalpy of Vaporization: 51.06 kJ/mol
Boiling Point: 292.4 °C at 760 mmHg
Vapour Pressure: 0.00322 mmHg at 25°C
Molecular Structure:

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral 43900ug/kg (43.9mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD		 Toxicology and Applied Pharmacology. Vol. 6, Pg. 147, 1964.
rat LD50 oral 287mg/kg (287mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 14, 1966.

Safety Profile

A poison by ingestion. When heated to decomposition it emits toxic vapors of POx.