FENPROPATHRIN

GENERAL
FENPROPATHRIN is a pyrethroid acaricide and insecticide with repellent, and contact and stomach action. It is highly effective against many species of mites, crawling and flying insect on cotton, pome fruit, cirtus fruit, vegetables and other crops.  

STRUCTURE

CAS NO.

FENPROPATHRIN

39515-41-8

ACTIVITY

Insecticides
(Pyrethroid Ester Insecticides)

MOL WT.

C22H23NO3
349.4286
SYNONYMS
(RS)-¥á-cyano-3-phenoxybenzyl 2,2,3,3-tetramethylcyclopropanecarboxylate
Cyano(3-phenoxyphenyl)methyl 2,2,3,3-tetramethylcyclopropanecarboxylate

TOXICITY

Mammals

Acute oral LD50 for male rats 70.6, female rats 66.6 mg/kg.
Acute percutaneous LD50 for rats 870~1,000, rabbits >2,000mg/kg.
Acute inhalation LC50 (4h) for rats 96mg/§¤ air.
Non-irritating to skin; mild irritant to eye (rabbits)
ADI 0.03 mg/kg b.w

Wildlife

Acute oral LD50 for mallard ducks 1,089mg/kg

Fish

TLm(96h) for carps 0.033 ppm.

PRECAUTION IN HANDLING

It should be under no circumstances whatsoever be handled by children or incompetent persons. While in storage, drum should be kept well sealed and stored in cool, dry and well ventilated place. In case of accidental ingestion, the patient should be taken to a doctor who should give symptomatic treatment.

SPECIFICATION

Appearance

Yellowish-brown solid

Vapor Pressure

0.73 mPa at 20 C

Melting Point

45~50 C

Corrosiveness

Non corrosive to metals

Solubility(20 C)

In water 14.1 §¶/§¤ at 25  C
In xylene, cyclohexanone 1000, methanol 337 (all in g/kg at 25 C)

Partition Coefficient

Kow logP=6.0 (20 C)

Stability

Decomposed in alkaline solution.
Exposure to light and air leads to oxidation and loss of activity
Photolysis DT50> in river 2.7 weeks.

Purity

92% min

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