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| CAS No.: | 85-34-7 |
|---|---|
| Name: | CHLORFENAC |
| Molecular Structure: | |
|
|
|
| Formula: | C8H5 Cl3 O2 |
| Molecular Weight: | 239.485 |
| Synonyms: | Aceticacid, (2,3,6-trichlorophenyl)- (6CI,8CI); 2,3,6-Trichlorophenylacetic acid;Chlorfenac; Fenac; Fenatrol; NSC 41931; TCPA |
| EINECS: | 201-599-3 |
| Density: | 1.568 |
| Melting Point: | 161 °C |
| Boiling Point: | 353.5 °C at 760 mmHg |
| Flash Point: | 167.6 °C |
| Solubility: | 0.2g/L(28 oC) |
| Hazard Symbols: |
 N Xn
|
| Risk Codes: | 51/53-22 |
| Safety: | Moderately toxic by ingestion and skin contact. When heated to decomposition it emits toxic fumes of Cl−. An herbicide used for preemergence season-long control of weeds. |
| PSA: | 37.30000 |
| LogP: | 3.27390 |
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Chemistry
Empirical Formula: C8H5Cl3O2
Molecular Weight: 239.4831 g/mol
EINECS: 201-599-3
Index of Refraction: 1.597
Density: 1.568 g/cm3
Flash Point: 167.6 °C
Enthalpy of Vaporization: 63.15 kJ/mol
Boiling Point: 353.5 °C at 760 mmHg
Vapour Pressure: 1.32E-05 mmHg at 25 °C
Melting point: 161 °C
Storage tempreture: 0-6 °C
Appearance: Leaflets (from ligroin) or light beige powder
Structure of 2,3,6-Trichlorophenylacetic acid (CAS NO.85-34-7):
IUPAC Name: 2-(2,3,6-Trichlorophenyl)acetic acid
Product Categories of 2,3,6-Trichlorophenylacetic acid (CAS NO.85-34-7): Alphabetic
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mammal (species unspecified) | LD50 | unreported | 1700mg/kg (1700mg/kg) | "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 153, 1971. | |
| rabbit | LD50 | skin | 1440mg/kg (1440mg/kg) | Pesticide Manual. Vol. 8, Pg. 149, 1987. | |
| rat | LD50 | oral | 1780mg/kg (1780mg/kg) | Farm Chemicals Handbook. Vol. -, Pg. C135, 1991. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by ingestion and skin contact. When heated to decomposition it emits toxic fumes of Cl−. An herbicide used for preemergence season-long control of weeds.
Hazard Codes of 2,3,6-Trichlorophenylacetic acid (CAS NO.85-34-7): 
N,
Xn
Risk Statements: 51/53-22
R22:Harmful if swallowed.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 61-36
S36:Wear suitable protective clothing.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
Specification
2,3,6-Trichlorophenylacetic acid ,its cas register number is 85-34-7. It also can be called Chlorfenac ; Benzeneacetic acid, 2,3,6-trichloro- ;and (2,3,6-trichlorophenyl)acetic acid .