Triazine-ring herbicides
[Atrazine] CAS[1912-24-9]
= 2-Chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine, = 2-Chloro-4-ethylamino-6-isopropylamino-1,3,5-triazixine, = 2-Chloro-4-(ethylamino)-6-(iso-propylamino)-s-triazine (ref. ID; 4554)
Trade name
Atrazine (J, I, A, B): Aatrex, Gesaprim, Primatol-A, Vectol
Chemical formula
C8H14ClN5
Purpose for use
Triazine-ring herbicide.
Atrazine is one of the most used pesticides in the world, but banned from agriculture in Germany since 1992. Atrazine moreover is suspected to cause endocrine disruption. (ref. ID; 6707)
Toxicity
LD50 (oral): rat 3080 mg/kg, mouse 1750 mg/kg.
Test organisms
Green algae (formerly including protozoa): Chlamydomonas reinhaditii (ref. ID; 1319, 4553, 4565)
Protozoa: Acanthamoeba castellanii (ref. ID; 946)
Protozoa: Euglena gracilis (ref. ID; 4554, 4560, 4562)
Protozoa: Tetrahymena pyriformis (ref. ID; 1319, 3554)
Oligochaeta: Enchytraeus albidus (ref. ID; 6754)
Oligochaeta: Lumbriculus variegatus (ref. ID; 6707)
Oligochaeta: Midden formed by Lumbricus terrestris (ref. ID; 6894)
Aquatic microcosm (ref. ID; 3588, 6752, 6828)
[Primextra: Atrazine-metolachlor liquid formulation]
Trade name
Primextra
Test organisms
Oligochaeta: Lumbricus terrestris (ref. ID; 4498)
[Prometryn] CAS[7287-19-6]
= 2,4-Bis(isopropylamino)-6-methylthio-1,3,5-triazixine
Trade name
Prometryn (J, I, A, B): Caparol, Gesagard, Primatol-Q, prometryne
Chemical formula
C10H19N5S
Purpose for use
Herbicide. A selective systemic methylthiotriazine herbicide. (ref. ID; 6701)
Toxicity
LD50 (oral): rat 3150-3750 mg/kg.
Test organisms
Aquatic microcosm (ref. ID; 6701)
[Simazine] CAS[122-34-9]
= 2-Chloro-4,6-bis(ethylamino)-1,3,5-triazixine
Trade name
Simazine (J, I, A, B): CAT, Gesatop, Primatol-S, Princep
Chemical formula
C7H12ClN5 (R=C2H5)
Purpose for use
Herbicide.
Toxicity
LD50 (oral): rat>5000 mg/kg.
Test organisms
Protozoa: Acanthamoeba castellanii (ref. ID; 946)
[Simetryn] CAS[1014-70-6]
= 2,4-Bis(ethylamino)-6-methylthio-1,3,5-triazixine
Trade name
Simetryn (J, I, B): Gy-bon, simetryne
Chemical formula
C8H15N2S
Purpose for use
Herbicide.
Toxicity
LD50 (oral): rat 750 mg/kg, mouse 535 mg/kg.