Betanal

  • 3-(Carbomethoxyamino)phenyl 3-methylcarbanilate
  • EP-452
  • Fenmedifam
  • Kemifam
  • 3-Methoxycarbonylaminophenyl-N-3'-methylphenylcarbamate
  • Methyl-3-hydroxycarbanilate-3-methylcarbanilate
Formula
C16H16N2O4
Structure
Description
Colorless crystals or white powder.
Uses
Post emergent herbicide for control of certain broadleaf & grass weeds, recommended for use in sugar beets, strawberries & sunflowers.

Registry Numbers and Inventories.
CAS
13684-63-4
EC (EINECS/ELINCS)
237-199-0
RTECS
FD9050000
RTECS class
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector
Merck
12,7384
Beilstein/Gmelin
2395027
EPA OPP
98701
Swiss Giftliste 1
G-3967
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C16H16N2O4
Formula mass
300.31
Melting point, °C
139-142
Boiling point, °C
181 (13 torr)
Vapor pressure, mmHg
1E-11 (25 C)
Density
0.34-0.54 g/cm3 (20 C)
Solubility in water
4.7 mg/L

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
Wear goggles to prevent splashing into eyes.
Respirators
Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.
Small spills/leaks
If a spill of this chemical occurs, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with acetone and transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
Very low volatility; no changes were observed when held for 6 days at 50 C; hydrolysis at 22 C in buffer solution, 50% loss occurred in 70 days at pH 5, 24 hr at pH 7, 10 min at pH 9. Shelf life over 1 yr.
Incompatibilities
Incompatible with strong acids and bases, and especially

Fire.
Fire fighting
Fires involving this compound can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.

Health.
Poison_Class
5
Exposure effects
Exposure to thiram or mbdt-carb (based on animal studies) may cause weakness, ataxia, ascending paralysis and hypothermia. Peripheral neuropathy (pain, numbness and weakness of the extremities) has been noted following exposure to thiuram (the ethyl analog of thiram). No adverse reproductive effects (testicular parameters) in male mice were observed following methyl thiophanate doses up to 1000 mg/kg orally for 5 consecutive days (Traina et al, 1998). Maternal toxicity was evident in female rats.
   Ingestion
Nausea, vomiting and diarrhea may occur.
   Inhalation
Respiratory failure, requiring ventilatory support, has been reported following ingestions.
   Skin
Exposure to dusts, sprays, solutions, wettable powder suspensions or emulsions of these agents may lead to skin and mucous membrane irritation.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.