Chemical Properties
Benfuracarb is a thick liquid.
Uses
Benfuracarb is a benzofuranyl methylcarbamate based insecticide used to control aphids, springtails and other pests usually on beet crops.
Potential Exposure
A benzofuranyl methylcarbamate
insecticide, nematicide. Not registered for use in the United
States.
First aid
Speed in removing material from eyes and skin
is of extreme importance. Eyes: Eye contact can cause dangerous
amounts of these chemicals to be quickly absorbed
through the mucous membrane into the bloodstream.
Immediately and gently flush eyes with plenty of warm or
cold water (NO hot water) for at least 15 minutes, occasionally
lifting the upper and lower eyelids. Get medical
aid immediately. Skin: Get medical aid. Dermal contact can
cause dangerous amounts of these chemicals to be absorbed
into the bloodstream. Wearing the appropriate PPE equipment
and respirator for carbamate pesticides, immediately
flush skin with plenty of soap and water for at least 15 minutes
while removing contaminated clothing and shoes.
Shampoo hair promptly if contaminated; protect eyes.
Ingestion: Call poison control. Loosen all clothing. Never
give anything by mouth to an unconscious person. Get
medical aid. Do NOT induce vomiting. If conscious, alert,
and able to swallow, rinse mouth and have victim drink 4
to 8 ounces of water. Check to see if poison control
instructs you to use ipecac syrup, otherwise administer
slurry of activated charcoal (2 oz in 8 oz of water). If victim
is UNCONSCIO United States OR HAVING
CONVULSIONS, do nothing except keep victim warm. In
some cases you may be specifically instructed by poison
control to induce vomiting by way of 2 tablespoons of syrup
of ipecac (adult) washed down with a cup of water. Do
NOT give activated charcoal before or with ipecac syrup.
Inhalation: Get medical aid. Do not contaminate yourself.
Wearing the appropriate PPE equipment and respirator for
carbamate pesticides, immediately remove the victim from
the contaminated area to fresh air. If the victim is not breathing,
administer artificial respiration. Do not use mouth-tomouth
method if victim ingested or inhaled the substance;
give artificial respiration with the aid of a pocket mask
equipped with a one-way valve or other proper respiratory
medical device. If breathing is difficult, administer oxygen
through bag/mask apparatus until medical help arrives. Do
not leave victim unattended.
Shipping
UN 2992 Carbamate pesticides, liquid, toxic,
Hazard Class: 6.1; Labels: 6.1—Poisonous materials.
Incompatibilities
Carbamates are incompatible with reducing
agents, 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.
Waste Disposal
Do not discharge into drains
or sewers. Dispose of waste material as hazardous waste
using a licensed disposal contractor to an approved landfill.
Consult with environmental regulatory agencies for
guidance on acceptable disposal practices. Incineration with
effluent gas scrubbing is recommended. Containers must be
disposed of properly by following package lab el directions
or by contacting your local or federal environmental control
agency, or by contacting your regional EPA office.
Definition
ChEBI: Benfuracarb is a carbamate ester, a member of 1-benzofurans and an ethyl ester. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor, a carbamate insecticide and an agrochemical.
Metabolic pathway
When 14C-benfuracarb is applied topically to
houseflies, the houseflies metabolize benfuracarb
easily to form carbofuran which in turn is oxidized at
the 3-position of the ring and N-methyl group, resulting
in further conjugates of the metabolites. Major
metabolites are carbofuran, 3-hydroxycarbofuran, N-
hydroxymethylcarbofuran, 3-ketocarbofuran, 2,3-
dihydro-2,2-dimethyl-3-hydroxybenzofuran-6-ol, 3-
hydroxy-N-hydroxymethylcarbofuran, and 3-keto-N-
hydroxymethylcarbofuran.
Degradation
Benfuracarb is stable in neutral and weakly basic media but unstable in
strongly acidic or basic conditions. It is degraded by sunlight (PM). A
methanolic solution of unlabelled benfuracarb was coated on a glass plate
or applied to soil on a plate and irradiated with a high pressure Hg lamp
(125 W). Details not given were the emission spectrum of the lamp, the
experimental sample temperatures and the irradiation periods. After
irradiation, samples were analysed by TLC methods. The methanol solution
turned a deep brown on irradiation and four major and three minor
products were formed (see Scheme 1). The major products were a cleavage
product (2), the phenol (5) and carbofuran (6). Minor amounts of the
dimeric compounds 3 and 4 were detected. On soil, three photoproducts
were the phenol (5), carbofuran (6) and the cleavage product (7). On a
glass surface four products were the phenol (5), carbofuran (6) and the cleavage products 2 and 7. No products of oxidation were reported (Dureja et al., 1990).