- Synonyms: (2-methyl-1,1-biphenyl-3-yl)-methyl-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylate; Talstar®
- OSHA IMIS Code Number: B760
- Chemical Abstracts Service (CAS) Registry Number: 82657-04-3
- NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: GZ1227800
- Chemical Description and Physical Properties:
- off white to pale tan waxy solid with a very faint, slightly sweet odor
- molecular weight: 422.87
- vapor pressure: 1.80X10-7 mm Hg @ 25°C/4°C
- molecular formula: C23H22ClF3O2
- melting point: 69°C
- Potential Symptoms: Large doses may cause incoordination, tremor, salivation, vomiting, diarrhea, and irritability to sound and touch
- Affected Organs: CNS, skin, eyes
- Bifenthrin is moderately toxic to mammals when ingested. The dose at which half of the test animal die, the LD50, for bifenthrin is about 54 mg/kg in female rats and 70 mg/kg in male rats.
- Pyrethroids are poisons that affect the electrical impulses in nerves, over stimulating nerve cells causing tremors and eventually causing paralysis.
- Literature Basis:
- Environmental Health Criteria 99: Cyhalothrin, World Health Organization (WHO), p.13 (1990).
- Other Insecticides, Acaricides, and Repellents (PDF), Pyrethroids, Recognition and Management of Pesticide Poisonings, Fifth Edition, Chapter 8, Environmental Protection Agency (EPA), (1999).
- Toxicological Profile for Pyrethrins and Pyrethroids (PDF), Agency for Toxic Substances and Disease Registry (ATSDR) (September 2003).
Monitoring Methods used by OSHA
Primary Laboratory Sampling/Analytical Method (SLC1):
- OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/40 mesh) with glass fiber filter enclosed
- maximum volume: 480 Liters
- maximum flow rate: 1.0 L/min
- current analytical method: Gas Chromatography; GC/ECD
- analytical solvent: Toluene
- method reference: OSHA (In-House File)
- method classification: Study
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