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Fenthion

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Synonyms & Trade Names
Baytex, O,O-Dimethyl O-3-methyl-4-methylthiophenyl phosphorothioate, Entex
CAS No.
55-38-9
RTECS No.
TF9625000
DOT ID & Guide
Formula
C₁₀H₁₅O₃PS
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
See Appendix D
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Colorless to brown liquid with a slight, garlic-like odor. [insecticide]
Molecular Weight
278.3
Boiling Point
?
Freezing Point
43°F
Solubility
0.006%
Vapor Pressure
0.0003 mmHg
Ionization Potential
?
Specific Gravity
1.25
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Liquid
Incompatibilities & Reactivities
Oxidizers
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
nausea, vomiting, abdominal cramps, diarrhea, salivation; headache, dizziness, lassitude (weakness, exhaustion); rhinorrhea (discharge of thin nasal mucus), chest tightness; blurred vision, miosis; cardiac irregularities; muscle fasciculation; dyspnea (breathing difficulty)
Target Organs
respiratory system, central nervous system, cardiovascular system, plasma cholinesterase
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0655
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health