- Carbamic acid, methyl-3,5-dimethyl-4-(methylthio)phenyl ester
- Carbamic acid, N-methyl-4-(methylthio)-3,5-xylyl ester
- 4-Methylmercapto-3,5-dimethylphenyl N-methylcarbamate
- Phenol, 3,5-dimethyl-4-(methylthio)-methylcarbamate
- 3,5-Xylenol, 4-(methylthio)-methylcarbamate
White crystalline powder with a mild odor.
Registry Numbers and Inventories.
EC Index Number
Toxic; Dangerous for the Environment
Agricultural Chemical and Pesticide
Swiss Giftliste 1
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.0001 (25 C)
Vapor density (air=1)
1.236 g/cm3 (20 C)
Solubility in water
30 mg/L (20 C)
Partition coefficient, pKow
Hazards and Protection.
Tightly closed containers. Keep away from heat and water.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Personal protective equipment include safety goggles or face mask, hooded suit, approved respirator or self-contained breathing apparatus, rubber gloves and boots.
Wear positive pressure self-contained breathing apparatus (SCBA).
Avoid inhalation of material. This compound is a solid carbamate insecticide. Do not touch spilled material; stop leak if you can do so without risk. Use water spray to reduce vapors. Small spills: absorb with sand or other noncombustible absorbent material and place into containers for later disposal. Small dry spills: With clean shovel, place material into clean, dry container and cover; move containers from spill area. Large spills: Dike far ahead of spill for later disposal. Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Remove and isolate contaminated clothing at the site. In case of contact with material, immediately flush skin or eyes with running water for at least 15 minutes.
Unstable in highly alkaline media.
Incompatible with strong acids and bases, and especially
This compound is a solid carbamate insecticide.Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Wear positive pressure breathing apparatus and special protective clothing. Remove and isolate contaminated clothing at the site. Move container from fire area if you can do it without risk. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material.This compound is a carbamate insecticide.Extinguish with dry chemical, carbon dioxide, water spray, fog, or foam.
When heated to decomposition, it emits very toxic fumes of nitrogen and sulfur oxides.
Toxic fumes of sulfur and nitrogen oxides are emitted.
Blurred vision, miosis, tremor, muscle twitching, convulsions, mental confusion, and coma may occur. Delayed peripheral neuropathy similar to that seen with organophosphates has been described in one case. Dystonic reaction may occur following parenteral injection. Methiocarb was not teratogenic in rats or rabbits, but was rapidly transferred across the placenta in rats. <br>No data were available to assess the potential effects of exposure to this agent during pregnancy or lactation.
Nausea, vomiting, diarrhea, and abdominal cramping may be noted.
Dyspnea, rales, and pulmonary edema may occur.
Avoid any skin contact. See Inhalation.
Do not induce emesis. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
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 contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
I; II; III
USCG CHRIS Code