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Cyfluthrin
(powder)
ICSC: 1764
Peer-Review Status: 08.06.2012 Validated
Cyclopropanecarboxylic acid, 2-(2,2-dichlorovinyl)-3,3-dimethyl-, ester with (4-fluoro-3-phenoxyphenyl)hydroxyacetonitrile
Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, cyano(4-fluoro-3-phenoxyphenyl)methyl-ester
Alpha-cyano-4-fluoro-3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate 
CAS #: 68359-37-5 RTECS #: GZ1253000
UN #: 3349
EC #: 269-855-7
EINECS #: 607-253-00-1
    Formula: C22H18Cl2FNO3
Molecular mass: 434.29

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. See Chemical dangers Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames. NO contact with oxidants.  Use powder, water spray, foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion on contact with strong oxidants. See Chemical Dangers.  Prevent build-up of electrostatic charges (e.g., by grounding).   
 
EXPOSURE   STRICT HYGIENE!   
Inhalation Headache. Nausea. Vomiting.  Avoid inhalation of fine dust. Use local exhaust and breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Tingling sensation.  Protective clothing. Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Watering of the eyes.  Wear face shield or safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation in the mouth. Excessive salivation. Headache. Nausea. Vomiting.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Give a slurry of activated charcoal in water to drink. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Ventilation. Do NOT let this chemical enter the environment. If solid: sweep spilled substance into sealable containers. If liquid: collect leaking liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs.
Severe marine pollutant. 
EC Classification
R: 23-28-50/53; S: (1/2)-36/37/39-45-60-61; Symbol: T+, N 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
Signal: Danger
Fatal if swallowed
Fatal if inhaled
Causes damage to nervous system
Very toxic to aquatic life with long lasting effects 
skull;toxiccancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
  Keep in a well-ventilated room. Well closed. Separated from strong oxidants, strong acids and strong bases. Separated from food and feedstuffs. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
BROWN CRYSTALS WITH CHARACTERISTIC ODOUR. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Decomposes rapidly on heating. Reacts violently with strong oxidants. This produces toxic and corrosive fumes including nitrogen oxides, hydrogen chloride, hydrogen cyanide, hydrogen fluoride and carbon monoxide. 

Occupational exposure limits
TLV not established.
MAK (inhalable fraction): 0.01 mg/m³; Peak limitation category: I(1); Pregnancy risk group: C; (DFG 2012). 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance may cause effects on the nervous system. 

Effects of long-term or repeated exposure
See Acute Hazards/Symptoms. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 60°C
Solubility in water, mg/l at 20°C: 0.003
Density (at 20°C): 1.27 g/cm³
Octanol/water partition coefficient as log Pow: 5.9
Vapour pressure: negligible 
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
When the substance is predominantly liquid the UN number is 3352 (Pyrethroid pesticide, liquid, toxic), 6.1, PG II.
Technical-grade cyfluthrin consists of a mixture of optical isomers. Toxicological properties may vary.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Cyfluthrin (WHO Food Additives Series 39)
       CYFLUTHRIN (JECFA Evaluation)
       Cyfluthrin (Pesticide residues in food: 1987 evaluations Part II Toxicology)
       Cyfluthrin (UKPID)