ChemicalBook > CAS DataBase List > Empenthrin

Empenthrin

Product Name
Empenthrin
CAS No.
54406-48-3
Chemical Name
Empenthrin
Synonyms
D-EMPENTHRIN;ma108;s2852;s2852f;VAPORTHRIN;EMPENTHRIN;s2852forte;empenthrine;Empenethrin;Empenthrin 0.1
CBNumber
CB0160557
Molecular Formula
C18H26O2
Formula Weight
274.4
MOL File
54406-48-3.mol
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Empenthrin Property

Melting point:
25°C
Boiling point:
377.38°C (rough estimate)
Density 
0.9965 (rough estimate)
vapor pressure 
1.4×10-2 Pa (23.6 °C)
refractive index 
1.5510 (estimate)
storage temp. 
2-8°C
Water Solubility 
0.11 mg l-1 (25 °C)
Stability:
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
54406-48-3(CAS DataBase Reference)
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Safety

Hazard Codes 
Xn;N,N,Xn
Risk Statements 
22-51/53
Safety Statements 
61
RIDADR 
UN 3082
RTECS 
GZ1728000
HS Code 
29162090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TRC
Product number
E586003
Product name
Empenthrin
Packaging
100mg
Price
$605
Updated
2021/12/16
TRC
Product number
E586003
Product name
Empenthrin
Packaging
250mg
Price
$1210
Updated
2021/12/16
AK Scientific
Product number
O257
Product name
D-Empenthrin
Packaging
1g
Price
$1366
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0069699
Product name
CYCLOPROPANECARBOXYLIC ACID, 2,2-DIMETHYL-3-(2-METHYL-1-PROPEN-1-YL)-, 1-ETHYNYL-2-METHYL-2-PENTEN-1-YL ESTER
Purity
95.00%
Packaging
100MG
Price
$909.56
Updated
2021/12/16
Matrix Scientific
Product number
099477
Product name
4-Methylhept-4-en-1-yn-3-yl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate
Purity
95+%
Packaging
1g
Price
$975
Updated
2021/12/16
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Empenthrin Chemical Properties,Usage,Production

Description

Empenthrin, also known as vaporthrin, (2E)-1-ethynyl-2-methyl-2-penten-1-yl 2,2- dimethyl-3-(2-methyl-1-propen-1-yl) cyclopropanecarboxylate, is a derivative of 1-ethynyl- 2-methyl penten-2-ol. The vapor pressure of empenthrin at room temperature is suitable and therefore it has a natural volatility. At 30 °C, the vapor pressures of empenthrin and allethrin are 1.62?×?10?3 and 1.20?×?10?4 mmHg, respectively. Thus, the vapor pressure of empenthrin is about 10 times more than that of allethrin. Moreover, empenthrin is odorless. It has strong killing activity and repellent effect on pests and is very suitable for textile mothproofing.

Chemical Properties

Empenthrin is a light yellow and oily liquid with a boiling point of 346°C and a flash point of 144°C. Its density is 0.999 g.cm–3 at 20°C. The refractive index of empenthrin is 1.5270 at 20°C. It has low acute mammalian toxicity (its oral LD50 is >5,000 mg.kg–1 in male rats, >3,500 mg.kg–1 in female rats and >3,500 mg.kg–1 in mice). It is, however, very toxic to fish and other aquatic organisms.

Uses

Empenthrin is used as a domestic insecticide, especially against moths and other insects which attack fabrics.

Uses

Empenthrin is an insecticidal pyrethroid compound.

Definition

ChEBI: Empenthrin is a monoterpenoid.

Preparation

About 3.72 g (0.03 mol) of 2-methyl-1-ethynyl-2-pentenol and 3.16 g (0.04 mol) of pyridine were added to toluene to form a solution. A toluene solution containing 5.6 g (0.03 mol) of Chrysanthemoyl chloride was added in a dropwise manner. The reaction was carried out at a temperature of 40–50°C for 6h. After reaction, the reaction solution was washed with water until neutral, dried and then subjected to distillation under reduced pressure. About 5.7 g of empenthrin was collected from a fraction of 120–126°C (0.03 mmHg). The yield of empenthrin was 69%.

Metabolic pathway

Empenthrin is a low molecular weight ester of (1R)-chrysanthemic acid (2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid). It has a relatively high vapour pressure and, unlike most pyrethroids, it is effective against flying insects. The molecule has three chiral centres and geometric isomerism in the alcohol group but, with the exception of the 1R acid, the full isomer mixture is used. As the insecticide has been developed for domestic use, it is unlikely that there will be a requirement for metabolism studies in plants or for extensive environmental fate studies. Its metabolism in rats has been reported, with particular attention paid to the fate of the novel alcohol moiety. As with other pyrethroids, ester cleavage and oxidation and conjugation of the alcohol metabolite predominated. The fate of the chrysanthemic acids can be assessed by reference to phenothrin.

Degradation

Empenthrin is a stable molecule but it would be expected to be labile at pH values above 10.

Empenthrin Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Empenthrin manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
Empenthrin 54406-48-3
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20tons
Release date
2023-09-15
Hebei Chuanghai Biotechnology Co,.LTD
Product
Empenthrin 54406-48-3
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-21
Hebei Fengjia New Material Co., Ltd
Product
Empenthrin 54406-48-3
Price
US $6.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10000
Release date
2024-08-16

54406-48-3, EmpenthrinRelated Search:


  • 1-ETHINYL-2-METHYL-2-PENTEN-1-YL CHRYSANTHEMATE
  • D-EMPENTHRIN
  • [(E)-4-methylhept-4-en-1-yn-3-yl] 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate
  • EMPENTHRIN
  • ma108
  • -methyl-2-pentenylester
  • s2852
  • s2852f
  • s2852forte
  • 1-ethynyl-2-methylpent-2-enyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
  • VAPORTHRIN
  • (rs)-(e)-1-ethynyl-2-methyl-2-pentenyl(1r)-cis,trans-chrysanthemate
  • 2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicaci1-ethynyl-2
  • 2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicaci1-ethynyl-2-methyl-2-pentenylester
  • Cyclopropanecarboxylicacid,2,2-dimethyl-3-(2-methyl-1-propenyl)-,1-ethynyl-2-methyl-2-pentenylester
  • empenthrin[(1r)isomers]
  • Empenthrin, Pestanal
  • (E)-1-Ethynyl-2-methylpenten-2-yl 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate
  • Chrysanthemic acid, (E)-1-ethynyl-2-methylpenten-2-yl ester
  • empenthrin (bsi, draft e-iso)
  • empenthrine (draft f-iso)
  • 1-Ethinyl-2-methylpent-2-enylchrysanthemat
  • empenthrine
  • 1-Ethinyl-2-methyl-2-pentyl-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanocarboxylate
  • (E)-(R,S)-1-ethynyl-2-methylpent-2-enyl (1R,S)-cis-trans-2,2-dimethyl-3-(2-methylprop-1-enyl) cyclopropanecarboxylate
  • (1R)-2,2-Dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid 1-ethynyl-2-methyl-2-pentenyl ester
  • Empenethrin
  • 4-Methylhept-4-en-1-yn-3-yl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate
  • Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-, 1-ethynyl-2-methyl-2-penten-1-yl ester
  • Empenthrin 0.1
  • Empenthrin (Vaporthrin)
  • C13118000 Empenthrin
  • 54406-48-3
  • INSECTICIDE