- 2-[[Ethoxy[(1-methylethyl)amino]phosphinothioyl]oxy]benzoic acid 1-methylethyl ester
- Salicylic acid, isopropyl ester, O-ester with O-ethyl isopropylphosphoramidothioate
Colorless oil with a characteristic odor.
Isofenphos, marketed under the basic producer's trade name Oftanol, is currently used in the United States on turf and ornamental trees and shrubs to control white grubs, mole crickets, and other insects (mostly subterranean species).
Registry Numbers and Inventories.
EC Index Number
Agricultural Chemical and Pesticide; Reproductive Effector
Swiss Giftliste 1
Japan ENCS (MITI)
Boiling point, °C
Vapor pressure, mmHg
6E-7 (25 C)
1.131 g/ml (20 C)
Solubility in water
22 mg/L (20 C)
1.5182 (24 C)
Heat of vaporization
Hazards and Protection.
Keep tightly closed. Store at 2-8 C
Compatible chemical-resistant gloves. Chemical safety goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Make no contact with the spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stable at normal temperatures and pressures.
Susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Phosphorous oxides, Sulfur oxides.
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.
Fire will produce irritating, corrosive and/or toxic gases.
Toxic in contact with skin and if swallowed. Very toxic by inhalation.
May be fatal. May cause irritatior or burns. Vapors may cause dizziness or suffocation.
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes.
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
In case of contact with substance, immediately flush with running water for at least 20 minutes.