Note: Ingredients listed on restricted chemical lists
EC/CAS
55-38-9
Name of the chemical
Fenthion(ISO); O, O-Dimethyl-O-(4-methylthion-m-tolyl)-phosphorothioat (790/2009)
Concentration
>= 90 - <= 100
General Information
Version
6.12
Revision date
2025-11-06
Product name
Fenthion
CAS No.
55-38-9
1.2.1 Relevant identified uses
Laboratory chemicals, Synthesis of substances
1.2.2. Uses advised against
The product is being supplied under the TSCA R&D Exemption
Emergency telephone
800-424-9300, +1-703- 527-3887
Icons in SDS
Company Information
company name
Sigma-Aldrich Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H301+H311, H330, H341, H372, H410
Hazard statements
Code
Statements
H301+H311
Toxic if swallowed or in contact with skin
Section 2
SECTION 2: Hazards identification
Long term hazards
Category 1 aquatic hazard
Other hazards
None known
Signal word
Danger
Hazard statements
H301 + H311 Toxic if swallowed or in contact with skin. H330 Fatal if inhaled. H341 Suspected of causing genetic defects. H372 Causes damage to organs through prolonged or repeated exposure if swallowed. H410 Very toxic to aquatic life with long lasting effects.
Prevention
P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P260 Do not breathe mist or vapours. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P284 Wear respiratory protection.
Response
P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P302 + P352 + P312 IF ON SKIN: Wash with plenty of water. Call a POISON CENTER/ doctor if you feel unwell. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P308 + P313 IF exposed or concerned: Get medical advice/ attention. P362 Take off contaminated clothing and wash before reuse. P391 Collect spillage.
Storage
P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Hazards for the product as supplied Acute toxicity (Oral) : Category 3 Acute toxicity : Category 2 (Inhalation) Acute toxicity (Dermal) : Category 3 Germ cell mutagenicity : Category 2 Specific target organ : Category 1 toxicity - repeated exposure (Oral) Short-term (acute) : Category 1 aquatic hazard Long-term (chronic) : Category 1 aquatic hazard Other hazards
