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Basic Information
CAS No.: 321-55-1
Name: haloxon
Molecular Structure:
Molecular Structure of 321-55-1 (haloxon)
Formula: C14H14 Cl3 O6 P
Molecular Weight: 415.60
Synonyms: Coumarin,3-chloro-7-hydroxy-4-methyl-, bis(2-chloroethyl) phosphate (7CI,8CI);3-Chloro-7-hydroxy-4-methyl-2H-1-benzopyran-2-one bis(chloroethyl) phosphate;3-Chloro-7-hydroxy-4-methylcoumarin bis(2-chloroethyl) phosphate; 96H60;Di-(2-chloroethyl) 3-chloro-4-methylcoumarin-7-ylphosphate; Eustidil; Galloxon;Galoxane; Galoxone; Haloxon; Helmirane; Helmiron; Helmirone; Loxon; Luxon;O,O-(2-Chloroethyl) O-(3-chloro-4-methylcoumarin-7-yl) phosphate;O,O-Bis(2-chloroethyl) O-(3-chloro-4-methyl-7-coumarinyl) phosphate; O,O-Bis(b-chloroethyl)O-(3-chloro-4-methyl-7-coumarinyl) phosphate; O,O-Di(2-chloroethyl)O-(3-chloro-4-methylcoumarin-7-yl) phosphate;O-(3-Chloro-4-methylcoumarin-7-yl) O,O-bis(2-chloroethyl) phosphate
Density: 1.5g/cm3
Melting Point: 91°
Boiling Point: 504.6°C at 760 mmHg
Flash Point: 438.8°C
Hazard Symbols: Xn
Risk Codes: 20/21/22-36/37/38
Safety: Moderately toxic by ingestion and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits very toxic fumes of POx and Cl. See also COUMARIN; COUMARIN, 3-CHLORO-7-HYDROXY-4-METHYL-, BIS(3-CHLOROPROPYL) PHOSPHATE.
PSA: 84.78000
LogP: 4.75250
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Chemistry

Chemistry informtion about O,O-Di(2-Chloroethyl)-O-(3-Chloro-4-Methylcoumarin-7-Yl) Phosphate (CAS NO.321-55-1) is:
IUPAC Name: Bis(2-Chloroethyl) (3-Chloro-4-Methyl-2-Oxochromen-7-Yl) Phosphate
Synonyms: 96-H-60 ; Galoxone ; Helmirone ; Loxon ; Luxon 
MF: C14H14Cl3O6P
MW: 415.590121 g/mol
Density: 1.5 g/cm3
Flash Point: 438.8 °C
Boiling Point: 504.6 °C at 760 mmHg
Vapour Pressure: 2.61E-10 mmHg at 25°C 
Enthalpy of Vaporization: 77.41 kJ/mol
Following is the molecular structure of O,O-Di(2-Chloroethyl)-O-(3-Chloro-4-Methylcoumarin-7-Yl) Phosphate (CAS NO.321-55-1) is:

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 intraperitoneal 800mg/kg (800mg/kg)   Biochemical Pharmacology. Vol. 16, Pg. 1183, 1967.
chicken LD50 oral > 7gm/kg (7000mg/kg)   Biochemical Pharmacology. Vol. 16, Pg. 1183, 1967.
domestic animals - goat/sheep LD50 oral 763mg/kg (763mg/kg) behavioral: somnolence (general depressed activity) behavioral: food intake (animal) gastrointestinal: "hypermotility, diarrhea" American Journal of Veterinary Research. Vol. 41, Pg. 1857, 1980.
rabbit LD50 skin > 6gm/kg (6000mg/kg)   World Review of Pest Control. Vol. 9, Pg. 119, 1970.
rat LD50 oral 900mg/kg (900mg/kg)   Fortschritte der Arzneimittelforschung. Progress in Drug Research. Vol. 17, Pg. 108, 1973.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits very toxic fumes of POx and Cl. See also COUMARIN; COUMARIN, 3-CHLORO-7-HYDROXY-4-METHYL-, BIS(3-CHLOROPROPYL) PHOSPHATE.