Dimetilan

  • G-22870
  • Dimethylcarbamic acid, 1-((dimethylamino)carbonyl)-5-methyl-1H-pyrazol-3-yl
  • 1-Dimethylcarbamoyl-5-methylpyrazol-3-yl dimethylcarbamate
  • 2-Dimethylcarbamoyl-3-methyl-5-pyrazolyl dimethylcarbamate
  • 2-(N,N-dimethylcarbamyl)-3-methylpyrazolyl-5 n,n-dimethylcarbamate
  • Dimethyl 2-carbamyl-3-methylpyrazolyldimethylcarbamate
Formula
C10H16N4O3
Structure
Description
Colorless solid. The technical product is a yellow to reddish-brown solid.
Uses
Formerly used as an insecticide for insect control on livestock/

Registry Numbers and Inventories.
CAS
644-64-4
EC (EINECS/ELINCS)
211-420-0
EC Index Number
613-047-00-2
EC Class
Toxic; Harmful; Dangerous for the Environment
RTECS
EZ9084000
RTECS class
Agricultural Chemical and Pesticide
Merck
12,3313
Beilstein/Gmelin
889837
Beilstein Reference
5-23-10-00525
RCRA
P191
EPA OPP
90101
Swiss Giftliste 1
G-1566
Austrailia AICS
Listed

Properties.
Formula
C10H16N4O3
Formula mass
240.26
Melting point, °C
68 - 71
Boiling point, °C
200-210 (13 torr)
Vapor pressure, mmHg
0.0001
Solubility in water
24% @ 25 C

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
Protective clothing should be worn when working with the undiluted preparation.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
(Non-Specific -- Carbamate Pesticide, Solid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind, keep out of low areas. Do not touch spilled material, or breathe the vapors, dusts, or fumes from burning materials. Do not handle broken packages without protective equipment. Wash away any material that may have contacted the body with soap and water.
Stability
Volatility of 1 mgcu m technical hydrolyzed by acid and alkali.
Incompatibilities
Incompatible with strong acids and bases, and especially

Fire.
Fire fighting
(Non-Specific -- Carbamate Pesticide, Solid, n.o.s.) Move container from fire area. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material. Wear positive pressure breathing apparatus and special protective clothing.(Non-Specific -- Carbamates) Extinguish fire using agent suitable for types of surrounding fire, as the material itself burns with difficulty. Use water in flooding quantities as a fog. Use alcohol foam, carbon dioxide, or dry chemical.
Fire potential
Moderate; liquid formulations may be flammable if they contain a flammable solvent. The technical material may burn, but is difficult to ignite.

Health.
Poison_Class
2
Exposure effects
Rapid breathing may occur following inhalation of carbamate dusting powders, but is not necessarily related to severity of ensuing symptoms. 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. Protracted malaise and weakness may occur after apparent recovery from carbamate poisoning. No data were available to assess the teratogenic potential of this agent. <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. Dimetilan was not irritating to the skin of rats.
   Eyes
Pinpoint pupils, tearing, 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
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   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
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Transport.
USCG CHRIS Code
DLN