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136-25-4

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Basic Information
CAS No.: 136-25-4
Name: ERBON
Molecular Structure:
Molecular Structure of 136-25-4 (ERBON)
Formula: C11H9 Cl5 O3
Molecular Weight: 366.456
Synonyms: Propionicacid, 2,2-dichloro-, 2-(2,4,5-trichlorophenoxy)ethyl ester (6CI,7CI,8CI);2,2-Dichloropropionic acid 2-(2,4,5-trichlorophenoxy)ethyl ester;2-(2,4,5-Trichlorophenoxy)ethyl 2,2-dichloropropionate; Baron; Erbon; Novon;Pentanate
Density: 1.516g/cm3
Melting Point: 49-50°
Boiling Point: 408.2°Cat760mmHg
Flash Point: 157.1°C
Hazard Symbols: Toxic by inhalation and ingestion, strong irritant to eyes and skin.
Risk Codes: 22-51/53
Safety: Moderately toxic by ingestion. Used as a herbicide to control perennial broadleaf weeds. When heated to decomposition it emits toxic fumes of Cl−.
PSA: 35.53000
LogP: 4.76260
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Chemistry

IUPAC Name: 2-(2,4,5-Trichlorophenoxy)ethyl 2,2-dichloropropanoate 
Synonyms of Pentanate (CAS NO.136-25-4) : 2-(2,4,5-Trichlorophenoxy)ethyl 2,2-dichloropropanoate ; 2-(2,4,5-Trichlorphenoxy)ethyl-2,2-dichlorpropanoat ; 2,2-Dichloropropionic Acid 2-(2,4,5-Trichlorophenoxy)ethyl Ester ; Propanoic acid, 2,2-dichloro-, 2-(2,4,5-trichlorophenoxy)ethyl ester
CAS NO: 136-25-4
Molecular Formula:C11H9Cl5O3
Molecular Weight :366.45
Molecular Structure :
EINECS: 1.555
Surface Tension: 45.4 dyne/cm
Density: 1.516 g/cm3
Flash Point: 157.1 °C
Enthalpy of Vaporization: 66.02 kJ/mol
Boiling Point: 408.2 °C at 760 mmHg
Vapour Pressure: 7.12E-07 mmHg at 25°C

Uses

 Pentanate (CAS NO.136-25-4) is used as pesticides.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral 3170mg/kg (3170mg/kg)   Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. Vol. -, Pg. 484, 1966.
guinea pig LD50 unreported 2600mg/kg (2600mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: REGIDITY		 Hygiene and Sanitation Vol. 34(4-6), Pg. 174, 1969.
mammal (species unspecified) LD50 unreported 700mg/kg (700mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 122, 1971.
mouse LD50 oral 912mg/kg (912mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 549, 1986.
mouse LD50 unreported 912mg/kg (912mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: REGIDITY

BEHAVIORAL: ATAXIA		 Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 34(5), Pg. 18, 1969.
rabbit LD50 unreported 2193mg/kg (2193mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: REGIDITY		 Hygiene and Sanitation Vol. 34(4-6), Pg. 174, 1969.
rat LD50 oral 1gm/kg (1000mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C126, 1991.
rat LD50 unreported 1900mg/kg (1900mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ATAXIA

BEHAVIORAL: REGIDITY		 Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 34(5), Pg. 18, 1969.

Safety Profile

Moderately toxic by ingestion. Used as a herbicide to control perennial broadleaf weeds. When heated to decomposition it emits toxic fumes of Cl−.

Hazard CodesHarmfulXn,DangerousN
Risk Statements 22-51/53
R22: Pentanate (CAS NO.136-25-4) is harmful if swallowed. 
R51/53: Pentanate (CAS NO.136-25-4) is toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements 61
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.