| | Identification | More |  | [Name] 
 Metamitron
 |  | [CAS] 
 41394-05-2
 |  | [Synonyms] 
 1-Naphthalenol methylcarbamate
 1-naphthol methylcarbamate
 3-methyl-4-amino-6-phenyl-1,2,4-triazin-5(4h)-one
 4-AMINO-3-METHYL-6-PHENYL-1,2,4-TRIAZIN-5-ONE
 4-AMINO-3-METHYL-6-PHENYL-1,2,4-TRIAZINE-5-(4H)-ONE
 Arylam
 bug master
 carbamine
 carbatox
 Carbomate
 carpolin
 Carylderm
 cekubaryl
 Clinicide
 denapon
 Derbac
 devicarb
 Dicarbam
 GOLTIX
 hexavin
 |  | [EINECS(EC#)] 
 255-349-3
 |  | [Molecular Formula] 
 C10H10N4O
 |  | [MDL Number] 
 MFCD00055524
 |  | [Molecular Weight] 
 202.21
 |  | [MOL File] 
 41394-05-2.mol
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xn,N,T,F
 |  | [Risk Statements ] 
 R22:Harmful if swallowed.
 R50:Very Toxic to aquatic organisms.
 R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
 R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
 R11:Highly Flammable.
 |  | [Safety Statements ] 
 S61:Avoid release to the environment. Refer to special instructions safety data sheet .
 S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
 S36/37:Wear suitable protective clothing and gloves .
 |  | [RIDADR ] 
 UN 3077 9/PG 3
 
 |  | [WGK Germany ] 
 2
 
 |  | [RTECS ] 
 XZ3015000
 
 |  | [HazardClass ] 
 9
 |  | [PackingGroup ] 
 III
 |  | [HS Code ] 
 29336990
 |  | [Toxicity] 
 LD50 orally in male, female rats, male, female mice:  3343, 1832, 1450, 1463 mg/kg; dermally in rats:  >500 mg/kg; LC50 (4 hr) in rats, mice, hamsters (mg/m3):  >331, >206, >206 by inhalation (Lembrich)
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Herbicide.
 |  | [Definition] 
 ChEBI: A member of the class of 1,2,4-triazines that is 1,2,4-triazin-5(4H)-one substituted by an amino group at position 4, a methyl group at position 3 and a phenyl group at position 6.
 |  | [General Description] 
 
 4-Amino-3-methyl-6-phenyl-1,2,4-triazin-5-one, commonly known as metamitron, is a pesticide having low polarity and is hydrophobic in nature. Its pKa value is 2.9. |  | [Agricultural Uses] 
 Herbicide: Metamitron is a selective systemic herbicide that is 
absorbed through roots and leaves and inhibits photosynthesis. It is used to control grasses and broadleaf weeds 
in sugar beets and fodder beets. Not currently registered 
in the U.S. Used in most European countries and having 
34 global suppliers
.
 |  | [Trade name] 
 BAY 6676®; BAY-DRW 1139®; DRW 
1139®; GALAHAD®; GOLDBEET®; GOLTIX®; 
GOLTIX® 90; GOLTIX® SUPER; GOLTIX® WG; 
MM 70®; HERBRAK®; MARQUISE®; SKATER®; 
TORERO® (metamitron +  ethofumesate)
 |  | [Metabolic pathway] 
 Degradation of metamitron by photolysis is strongly
dependent on solvents and oxygen, and no
photoreaction is found in methanol, acetonitrile, and
hexane, nor in oxygen-free water. In water solution,
photolytic degradation occurs and results in the
formation of desaminometamitron and a ring-opening
polar benzoylacetyl hydrazine (tentatively assigned).
 | 
 |  |