Deltamethrin

  • (S)-alpha-cyano-3-Phenoxybenzyl (1R)-cis-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate
  • alpha-cyano-3-phenoxybenzyl [1R-[1alpha(S*),3alpha]]-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate
Formula
C22H19Br2NO3
Structure
Description
Crystals. Odorless.
Uses
Insecticide.

Registry Numbers and Inventories.
CAS
52918-63-5
EC (EINECS/ELINCS)
258-256-6
EC Index Number
607-319-00-X
EC Class
Toxic; Dangerous for the Environment
RTECS
GZ1233000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
2588
Merck
12,2934
Beilstein/Gmelin
6746312
EPA OPP
209700
Swiss Giftliste 1
G-6629
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C22H19Br2NO3
Formula mass
505.21
Melting point, °C
100.6
Boiling point, °C
535
Vapor pressure, mmHg
1.5E-11 (25 C)
Density
0.55 g/cm3 bulk density (25 C)
Solubility in water
Insoluble
Partition coefficient, pKow
6.20
Heat of vaporization
81.2 kJ/mol

Hazards and Protection.
Storage
Pyrethrins with piperonyl butoxide topical preparations should be stored in well-closed containers at a temperature less than 40C, preferably between 15-30C.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Avoid contact with strong oxidizers. Incompatible with lime and ordinary soaps because acids and alkalies speed up processes of hydrolysis.
Decomposition
Half life of 2.5 Days (ph 9, 25 C) when heated to decomposition it emits toxic fumes of hydrogen bromide, hydrogen cyanide, nitrogen oxides.

Fire.
Flash Point,°C
277
Fire fighting
Use carbon dioxide, foam, or dry chemical on fires involving pyrethroids.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
3
Exposure effects
   Ingestion
Nausea, vomiting and abdominal pain commonly occur and develop within 10 to 60 minutes following ingestion.
   Inhalation
Hypersensitivity reactions characterized by pneumonitis, cough, dyspnea, wheezing, chest pain, and bronchospasm may occur. Rare cases of respiratory failure and cardiopulmonary arrest have been reported.
   Skin
Irritant and contact dermatitis may develop. Erythema which mimics sunburn has also been noted after prolonged repeated exposure.
   Eyes
A stuffy, runny nose and scratchy throat following inhalational exposure may be noted.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Vitamin e topical application is highly effective in relieving paresthesias.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2588
Response guide
Hazard class
6.1
Packing Group
I; II; III