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Insecticides and acaricides

Fenthion safety data

GHS hazards, precautions, first aid, handling and transport for Fenthion. A classification summary, not a safety data sheet.
CAS 55-38-9Formula C10H15O3PS2

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

GHS classification

Pictograms, signal word and hazard classes of the GHS classification

GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment
Signal word
Danger

Hazard classes and categories

  • Acute Tox. 4 (oral)
  • Acute Tox. 4 (dermal)
  • Acute Tox. 3 (inhalation)
  • Muta. 2
  • STOT RE 1
  • Aquatic Acute 1
  • Aquatic Chronic 1

Hazard statements

H codes grouped by type. Percentages show the share of classification notifications that report the statement

Health hazards

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H331Toxic if inhaled.
  • H341Suspected of causing genetic defects.
  • H372Causes damage to organs through prolonged or repeated exposure.

Environmental hazards

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.

Precautionary statements

P codes for prevention, response, storage and disposal

Prevention

  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.

Response

  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.

Storage

  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.

Disposal

  • P501Dispose of contents and container in accordance with local regulations.

First aid

General first aid measures. Get medical advice if you feel unwell

If inhaled
IMMEDIATELY leave the contaminated area, take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used, if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
Skin contact
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
Eye contact
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
If swallowed
CHOLINESTERASE INHIBITORS ARE EXTREMELY TOXIC AND FAST-ACTING POISONS. IMMEDIATELY call a hospital of poison control center and transport the victim to a hospital. Atropine is an antidote for cholinesterase inhibitors but should only be administered by properly trained personnel. In the absence of this option and if the victim is conscious and not convulsing, it may be worth considering the risk of inducing vomiting, even though the induction of vomiting is not usually recommended outside of a physician's care. Ipecac syrup or salt water may be used to induce vomiting in such an emergency. If the victim is convulsing or unconscious, do not give anything by mouth, assure that the victim's ai…

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO open flames.

General: PREVENT GENERATION OF MISTS! STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!

Inhalation: Use ventilation, local exhaust or breathing protection.

Skin: Protective gloves. Protective clothing.

Eyes: Wear face shield or eye protection in combination with breathing protection.

Ingestion: Do not eat, drink, or smoke during work. Wash hands before eating.

Storage

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

Disposal

Hydrolysis & landfill: Mix fenthion with excess CaO /calcium oxide/ or NaOH /sodium hydroxide/ and sand or other adsorbent in a pit or trench at least 0.5 m deep in a clay soil. NaOH (or Na2CO3) /sodium carbonate/ can also be added to the mixture to help speed the reactions when CaO is used as the main alkali. The amt of CaO or NaOH to use depends on the amt of pesticide to be disposed of and, to some extent, the concentration of active ingredient in the pesticide and the actual chemical nature of the active ingredient. A practical guideline, in the absence of specific directions, is to use an approx volume or weight of alkali from one-half of to the same as that of the pesticide. For dilute formulations, such as a 1% soln or dust, the amount of CaO of NaOH can be reduced by one-half.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

NIOSH REL, TWA
0.2 mg/m³
ACGIH TLV, 8-hour TWA
0.05 mg/m³ (inhalable fraction and vapor)

Short-term exposure: Cholinesterase inhibition. The substance may cause effects on the nervous system. This may result in convulsions and respiratory failure. The effects may be delayed. Medical observation is indicated. Long-term exposure: Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms.

Transport information

UN dangerous goods classification for road, sea and air

UN number
UN 3018
Transport hazard class
6.1
Packing group
III

Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.

Supplier safety data sheets

SDS documents uploaded by suppliers who list this chemical

No supplier has uploaded an SDS for Fenthion yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Fenthion safely

Is Fenthion hazardous?

Fenthion carries the GHS signal word "Danger". Main hazards: harmful if swallowed, harmful in contact with skin, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

Which GHS pictograms apply to Fenthion?

The GHS classification of Fenthion shows 3 pictograms: GHS06 (acute toxicity (severe)), GHS08 (serious health hazard), GHS09 (hazardous to the environment).

What is the UN number of Fenthion?

Fenthion is transported under UN 3018, hazard class 6.1, packing group III. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Fenthion be stored?

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

Where can I get the SDS for Fenthion?

Ask the supplier for the safety data sheet of the exact grade you buy. Suppliers on CompoundList can attach their SDS to listings and send it with a quote. This page is a GHS classification summary, not an SDS.

GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error

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