Molecular Formula: C7H4Cl2O3
Molecular Weight: 207.01
EINECS: 206-281-8
Density: 1.665 g/cm3
Flash Point: 146.9 °C
Melting point: 221-224 ºC
Index of Refraction: 1.641
CAS Registry Number: 320-72-9
Enthalpy of Vaporization: 70.73 kJ/mol
Enthalpy of Vaporization: 59.21 kJ/mol
Boiling Point: 319.3 °C at 760 mmHg
Vapour Pressure: 0.000142 mmHg at 25°C
Appearance: white crystalline powder
Synonyms: 2-Hydroxy-3,5-dichlorobenzoic acid ; 2-Hydroxy-3,5-dichlorobenzoicacid ; 3,5-Dichloro-2-hydroxy-benzoicaci ; 3,5-Dichloro-salicylicaci ; Salicylic acid, 3,5-dichloro- ; USAF do-68 ; 3,5-Dichlorobenzoic acid
Following is the molecular structure of 3,5-Dichlorobenzoic acid (CAS NO.320-72-9):
3,5-Dichlorobenzoic acid (CAS NO.320-72-9) is used as a medicine, dyes intermediates.
3,5-Dichlorobenzoic acid (CAS NO.320-72-9) is derived from salicylic acid chloride. The salicylic acid dissolved in glacial acetic acid, the temperature was controlled at 8-20 ℃, mixing chlorine is about 8h. Chlorine after the reaction to continue to 1h. Cooling to 8-10 ℃, filtering, pickling, washing, drying derived product.
1. | ipr-mus LD50:50 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD277-689 . |
Reported in EPA TSCA Inventory.
Poison by intraperitoneal route. When heated to decomposition it emits toxic fumes of Cl−.
Safety Information of 3,5-Dichlorobenzoic acid (CAS NO.320-72-9):
Hazard Codes: XnXi
Risk Statements: 36/37/38-22
Safety Statements: 37/39-26-36
RTECS: VO2450000
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