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Basic Information
CAS No.: 37795-71-4
Name: 2,3-dihydro-3-methyl-9H-isoxazolo[3,2-b]quinazolin-9-one
Molecular Structure:
Molecular Structure of 37795-71-4 (2,3-dihydro-3-methyl-9H-isoxazolo[3,2-b]quinazolin-9-one)
Formula: C11H10 N2 O2
Molecular Weight: 202.213
Synonyms: NSC 294839;W 2451
Density: 1.41g/cm3
Boiling Point: 330.8°Cat760mmHg
Flash Point: 153.9°C
Safety: Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx.
PSA: 44.12000
LogP: 0.94220
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Chemistry

IUPAC Name: 3-methyl-2,3-dihydro-[1,2]oxazolo[3,2-b]quinazolin-9-one
Synonyms of 3-Methyl-2,3-dihydro-9H-isoxazolo(3,2-b)quinazolin-9-one (CAS NO.37795-71-4): W-2451 ; BRN 1076001 ; EINECS 253-671-9 ; NSC 294839 ; W 2451 ; 2,3-Dihydro-3-methyl-9H-isoxazolo(3,2-b)quinazolin-9-one ; 9H-Isoxazolo(3,2-b)quinazolin-9-one, 2,3-dihydro-3-methyl-
CAS NO: 37795-71-4
Molecular Formula of 3-Methyl-2,3-dihydro-9H-isoxazolo(3,2-b)quinazolin-9-one (CAS NO.37795-71-4): C11H10N2O2
Molecular Weight: 202.2093
Molecular Structure:

H bond acceptors: 4
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 41.9 Å2
Index of Refraction: 1.692
Molar Refractivity: 54.65 cm3
Molar Volume: 142.5 cm3
Surface Tension: 53.7 dyne/cm
Density of 3-Methyl-2,3-dihydro-9H-isoxazolo(3,2-b)quinazolin-9-one (CAS NO.37795-71-4): 1.41 g/cm3
Flash Point: 153.9 °C
Enthalpy of Vaporization: 57.35 kJ/mol
Boiling Point: 330.8 °C at 760 mmHg
Vapour Pressure: 0.000162 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 600mg/kg (600mg/kg)   Toxicology and Applied Pharmacology. Vol. 37, Pg. 164, 1976.
mouse LD50 intravenous 243mg/kg (243mg/kg)   Toxicology and Applied Pharmacology. Vol. 37, Pg. 164, 1976.
mouse LD50 oral 860mg/kg (860mg/kg)   Toxicology and Applied Pharmacology. Vol. 37, Pg. 164, 1976.
rat LD50 intraperitoneal 670mg/kg (670mg/kg)   Toxicology and Applied Pharmacology. Vol. 37, Pg. 164, 1976.
rat LD50 intravenous 290mg/kg (290mg/kg)   Toxicology and Applied Pharmacology. Vol. 37, Pg. 164, 1976.
rat LD50 oral 765mg/kg (765mg/kg)   Toxicology and Applied Pharmacology. Vol. 37, Pg. 164, 1976.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx.