Mexacarbate

  • 4-(Dimethylamino)-3,5-dimethylphenol methylcarbamate (ester)
  • Zectran
Formula
C12H18N2O2
Structure
Description
Mexacarbate is an odorless white crystalline solid dissolved in a liquid carrier.
Uses
Formerly used as a molluscicide.

Registry Numbers and Inventories.
CAS
315-18-4
EC (EINECS/ELINCS)
206-249-3
EC Index Number
006-054-00-1
EC Class
Very toxic; Harmful; Dangerous for the Environment
RTECS
FC0700000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector
UN (DOT)
2757
Merck
12,6253
Beilstein/Gmelin
2216978
RCRA
P128
EPA OPP
44201
Swiss Giftliste 1
G-5525

Properties.
Formula
C12H18N2O2
Formula mass
222.29
Melting point, °C
85.0
Vapor pressure, mmHg
<0.1
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep containers tightly closed in a well ventilated area away from food products. Keep away from heat and water.
Handling
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.
Protection
Long-sleeved clothing and goggles, long pants, rubber gloves and boots should be worn during handling (zectran 2e). Wear appropriate chemical protective clothing, gloves, boots and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash or cement powder. Water spill: If dissolved, in region of 10 ppm or greater concentration, apply activated carbon at ten times the spilled amount. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability
Stable under normal conditions, decomp in highly alkaline media subject to photo-decomposition in the solid state.
Incompatibilities
Incompatible with strong acids and bases, and especially

Fire.
Fire fighting
(Non-Specific -- Carbamate Pesticide, Solid, n.o.s.) Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog, or foam. Dike fire control water for later disposal; do not scatter the material.
Fire potential
Fire may produce irritating or poisonous gases.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
Rapid breathing may occur following inhalation of carbamate dusting powders, but it is not necessarily related to severity of ensuing symptoms. Blurred vision, miosis, tremor, muscle twitching, convulsions, and coma may occur. Delayed peripheral neuropathy similar to that seen with organophosphates has been described in one case. Mexacarbate was embryotoxic in the mouse, but was not teratogenic in the mouse or rat. It was 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.
   Ingestion
Nausea, vomiting, diarrhea, and abdominal cramping may be noted.
   Inhalation
Dyspnea, rales, and pulmonary edema may occur.
   Skin
Diaphoresis may be noted.
   Eyes
Pinpoint pupils and excessive salivation may be seen.

First aid
 
   Ingestion
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.
   Inhalation
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.
   Skin
Remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing. Note: see treatment of dermal exposure in the main body of this document for complete information.
   Eyes
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.

Transport.
UN number
2757
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
ZEC
 
Std. Transport #
4921540