General Description
Colorless crystalline solid. METOLCARB is an insecticide for the control of rice leafhoppers, planthoppers, codling moth, citrus mealybug, onion thrips, fruit flies, bollworms and aphids. Not registered as a pesticide in the U.S.
Air & Water Reactions
Soluble in water.
Reactivity Profile
METOLCARB is a carbamate ester. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.
Health Hazard
High oral and skin toxicity, and moderate inhalation toxicity. (Non-Specific -- Carbamates) Some carbamates appear to be carcinogenic, teratogenic, and/or mutagenic. Carbamates are cholinesterase inhibitors.
Fire Hazard
As for other solid carbamate pesticides, container may explode in heat of fire. Fire and runoff from fire control water may produce irritating or poisonous gases. Emits toxic fumes of nitrogen oxides when heated to decomposition. Avoid decomposing heat.
Potential Exposure
Metolcarb is an insecticide used for
the control of rice leafhoppers, plant-hoppers; codling
moth; citrus mealy bug; onion thrips; fruit flies; bollworms
and aphids. Not registered as a pesticide in the United
States.
First aid
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at
least 15 minutes, occasionally lifting upper and lower lids.
Seek medical attention immediately. If this chemical contacts
the skin, remove contaminated clothing and wash
immediately with soap and water. Speed in removing material
from skin is of extreme importance. Shampoo hair
promptly if contaminated. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions,
including resuscitation mask) if breathing has stopped and
CPR if heart action has stopped. Transfer promptly to a
medical facility. When this chemical has been swallowed,
get medical attention. Give large quantities of water and
induce vomiting. Do not make an unconscious person
vomit. Keep victim quiet and maintain normal body temperature.
Carefully observe victim since effects may be
delayed.
Shipping
UN2757 Carbamate pesticides, solid, toxic,
Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
UN3077 Environmentally hazardous substances, solid, n.o.s.,
Hazard class: 9; Labels: 9-Miscellaneous hazardous material,
Technical Name Required.
Incompatibilities
Carbamates are incompatible with reducing
agents such as hydrides, strong acids, oxidizing acids,
peroxides, and bases. Contact with active metals or nitrides
cause the release of flammable, and potentially explosive,
hydrogen gas. May react violently with bromine, ketones.
Incompatible with azo dyes, caustics, ammonia, amines,
boranes, hydrazines, strong oxidizers.
Description
Metolcarb (17), m-tolyl methylcarbamate
(IUPAC), C9H11NO2, MW 165.2, mp 76–77 ?C, is a colorless
solid that is moderately soluble in water and is readily
soluble in polar organic solvents.
Chemical Properties
Metolcarb is a colorless crystalline
solid.
Waste Disposal
Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant
(≥100 kg/mo) must conform to EPA regulations
governing storage, transportation, treatment, and waste
disposal. In accordance with 40CFR165, follow recommendations
for the disposal of pesticides and pesticide
containers. Must be disposed properly by following package
label directions or by contacting your local or federal
environmental control agency, or by contacting your
regional EPA office.
Uses
Metolcarb is used to control planthoppers, leafhoppers and other
sucking pests on rice. It is also used for control of citrus mealybugs, onion
thrips, Mediterranean fruit flies, pink bollworms and cotton aphids.
Definition
ChEBI: Metolcarb is a carbamate ester. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor, a carbamate insecticide, an acaricide and an agrochemical. It is functionally related to a methylcarbamic acid and a m-cresol.
Preparation
Metolcarb is produced by the reaction between 3-
methylphenol and Metolcarb.
Agricultural Uses
Insecticide, Acaricide: Metolcarb is an insecticide for the control of rice
green leafhoppers, plant-hoppers, codling moth, citrus
mealy bug, onion thrips, fruit flies, bollworms and aphids.
Not registered for use in the U.S. Not listed for use in EU
countries.
Trade name
DRC 3341®; KUMIAI®; METACRATE®;
S 1065®; SOGATOX DUST® 22; TSUMACIDE®;
TSUMAUNKA®; VADEN®
Metabolic pathway
The main pathways of metabolism of metolcarb in plants, mammals and
insects involve ring-methyl, N-methyl and phenyl-ring hydroxylation
and conjugation. Carbamate ester hydrolysis is a minor reaction. Further
oxidation of a ring-hydroxymethyl moiety to carboxyl occurs in rats and
insects.
storage
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area away from oxidizers. Where possible, automatically pump liquid from drums or other storage containers to process containers
