Product Name

  • Name

    Empenthrin

  • EINECS 259-154-4
  • CAS No. 54406-48-3
  • Density 0.999 g/cm3
  • Solubility 0.11 mg l-1 (25 °C)
  • Melting Point 25°C
  • Formula C18H26O2
  • Boiling Point 346 °C at 760 mmHg
  • Molecular Weight 274.403
  • Flash Point 144 °C
  • Transport Information UN 3082
  • Appearance liquid
  • Safety 61
  • Risk Codes 22-51/53
  • Molecular Structure Molecular Structure of 54406-48-3 (Empenthrin)
  • Hazard Symbols HarmfulXn,DangerousN
  • Synonyms Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, 1-ethynyl-2-methyl-2-pentenylester (9CI);Bunganon VA Plate;Empenthrin;MA 108;S 2852;S 2852 Forte;S2852F;Vaporthrin;d-Empenthrin;Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,1-ethynyl-2-methyl-2-penten-1-yl ester;
  • PSA 26.30000
  • LogP 4.12610

Empenthrin Chemical Properties


IUPAC Name: [(E)-4-Methylhept-4-en-1-yn-3-yl]2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate
Molecular Formula: C18H26O2 
Formula Weight: 274.44g/mol
Appearance: liquid
Density: 0.932g/cm3
Boiling Point: 346 °C at 760 mmHg
Refractive index: 1.527
Flash Point: 144 °C
Vapor Pressure: 5.92E-05 mmHg at 25°C
Solubility: soluble in  methanol and  xylene,2.4mg/L in water,500g/kg in methanol and  xylene
Stability: incompatible with strong oxidizing agents
EINECS: 259-154-4
liansport Information: UN 3082
Freely Rotating Bonds: 6 
Index of Refraction: 1.527  
Molar Refractivity: 84.44 cm3 
Molar Volume: 274.5 cm3 
Surface Tension: 38.6 dyne/cm   
Enthalpy of Vaporization: 59.02 kJ/mol 
EINECS: 259-154-4
Product Categories: INSECTICIDE
Classification Code of (RS)-(E)-1-Ethynyl-2-methyl-2-pentenyl(1R)-cis,trans-chrysanthemate (CAS NO.54406-48-3): Agricultural Chemical; Insecticide

Empenthrin Uses

  (RS)-(E)-1-Ethynyl-2-methyl-2-pentenyl(1R)-cis,trans-chrysanthemate (CAS NO.54406-48-3) can be used as pesticide.There is a quick knockdown, smoked kill and repellency to insects.

Empenthrin Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LC50 inhalation 2300mg/m3 (2300mg/m3)   Journal of Toxicological Sciences. Vol. 17(Suppl,
mouse LD50 oral > 3500mg/kg (3500mg/kg) PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE

BEHAVIORAL: ATAXIA

KIDNEY, URETER, AND BLADDER: INCONTINENCE
Journal of Toxicological Sciences. Vol. 17(Suppl,
mouse LD50 skin > 5gm/kg (5000mg/kg)   Yakkyoku. Pharmacy. Vol. 37, Pg. 717, 1986.
rat LC50 inhalation > 4610mg/m3 (4610mg/m3)   Journal of Toxicological Sciences. Vol. 17(Suppl,
rat LD50 oral 1680mg/kg (1680mg/kg)   Yakkyoku. Pharmacy. Vol. 37, Pg. 717, 1986.
rat LD50 skin 5gm/kg (5000mg/kg)   Yakkyoku. Pharmacy. Vol. 36, Pg. 533, 1985.

Empenthrin Safety Profile

Moderately toxic by ingestion. Low toxicity by inhalation and skin contact. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Symbols:  Xn;N
Risk Statements:  22-51/53
R22:  Harmful if swallowed 
R51/53:  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 sheet

Empenthrin Specification

  (RS)-(E)-1-Ethynyl-2-methyl-2-pentenyl(1R)-cis,trans-chrysanthemate (CAS NO.54406-48-3), its Synonyms are 1-Ethynyl-2-methylpent-2-enyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate ; Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, 1-ethynyl-2-methyl-2-pentenyl ester .

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