Prometryne

  • 2,4-bis(Isopropylamino)-6-methyl mercapto-S-triazine
  • 2,4-bis(Isopropylamino)-6-methylthio-S-triazine
  • 2,4-bis(Isopropylamino)-6-methylthio-1,3,5-triazine
  • N,N'-bis(1-Methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine
  • 2-Methylmercapto-4,6-bis(Isopropylamino)-S-triazine
  • 2-Methylthio-4,6-bis(Isopropylamino)-S-triazine
Formula
C10H19N5S
Structure
Description
Colorless crystals.
Uses
Pre- or post-emergence control of most annual grasses and broad-leaved weeds and in forestry.

Registry Numbers and Inventories.
CAS
7287-19-6
EC (EINECS/ELINCS)
230-711-3
RTECS
XY4390000
RTECS class
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
2763
Merck
12,7973
Beilstein/Gmelin
613575
EPA OPP
80805
Swiss Giftliste 1
G-2088
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C10H19N5S
Formula mass
241.36
Melting point, °C
118-120
Vapor pressure, mmHg
2E-6 (25 C)
Vapor density (air=1)
1.157
Density
1.157 g/cm3 (20 C)
Solubility in water
48 mg/L @ 24 C
pKa/pKb
9.90 (pKb)
Partition coefficient, pKow
3.51

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
The use of personal protective equipment such as glasses, synthetic gloves and NIOSH approved breathing apparatus is important.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides Flammable gaseous hydrogen is generated in combination with strong reducing agents, such as hydrides.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. Use water in flooding quantities as fog. Use alcohol foam. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. Keep upwind.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
4
Exposure effects
Coma was reported following ingestion of an herbicide containing atrazine, aminotriazole, ethylene glycol, and formaldehyde. Muscle tremors, tetany, and ataxia have been reported in animals following ingestions of triazine herbicides.
   Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
   Skin
Avoid any skin contact. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   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 wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   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
2763
Response guide
Hazard class
6.1
Packing Group
I; II; III