Agent Name


CAS Number




Major Category



1,3,5-Triazine-2,4-diamine, 6-chloro-N-ethyl-N'-(1-methylethyl)- (9CI); 1-Chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine; 1-Chloro-3-ethylamino-5-isopropylamino-s-triazine; 2-Aethylamino-4-chlor-6-isopropylamino-1,3,5-triazin [German]; 2-Aethylamino-4-isopropylamino-6-chlor-1,3,5-triazin [German]; 2-Chloro-4-(2-propylamino)-6-ethylamino-s-triazine; 2-Chloro-4-ethylamineisopropylamine-s-triazine; 2-Chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine; 2-Chloro-4-ethylamino-6-isopropylamino-s-triazine; 2-Ethylamino-4-isopropylamino-6-chloro-s-triazine; 6-Chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine; 6-Chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine; A 361; Aatram; Aatram 20G; Aatrex; Aatrex 4L; Aatrex 80W; Aatrex nine-O; Actinite PK; Akticon; Aktikon; Aktikon PK; Aktinit A; Aktinit PK; Aneldazin; Argezin; Atazinax; Atranex; Atrasine; Atrataf; Atratol; Atratol A; Atrazin; Atrazine; Atred; Atrex; Azoprim; Candex; Ceasin 50; Cekuzina-T; Chromozin; Crisatrina; Crisazine; Cyazin; Farmco atrazine; Fenamin; Fenamine; Fenatrol; G 30027; Geigy 30,027; Gesaprim; Gesaprim 50; Gesaprin; Gesoprim; Griffex; Herbatoxol; Hungazin; Hungazin (VAN); Hungazin PK; Inakor; Oleogesaprim; Pitezin; Primatol; Primatol A; Primaze; Radazin; Radizin; Shell atrazine herbicide; Strazine; Triazine A 1294; Vectal; Vectal SC; Weedex A; Wonuk; Zeapos; Zeazin; Zeazine; Zeopos; s-Triazine, 2-chloro-4-ethylamino-6-isopropylamino-; [ChemIDplus]


Herbicides, Triazine


Colorless or white, odorless, crystalline powder. [herbicide]; [NIOSH]


The triazines are broadleaf herbicides. "Atrazine currently is one of the two most widely used agricultural pesticides in the U.S. (based on pounds of active ingredient applied per year). About two thirds of field corn and sorghum acres are treated with atrazine annually for weed control, accounting for most of the 64 to 80 million pounds used per year. Other uses are for turf and lawns, pineapples, sugarcane, wheat, and macadamia nuts." [EPA OPP web site] Used as a herbicide to control weeds in corn, asparagus, tomato, potato, and ornamental plantings; [ACGIH]


The following herbicides have an oral LD50 of >1 gm/kg and have little or no acute toxicity in humans: Alachlor, Amitrole, Ammonium sulfamate, Atrazine, Dalapon, Dicamba, Glyphosphate, Monuron, Oryzalin, Picloram, Propanil, Simazine, etc. [LaDou, p. 613] A mild skin irritant; Injury to the brain, heart, liver, lungs, kidneys, ovaries, and endocrine organs are observed in chronic feeding studies of experimental animals. [EXTOXNET] For the triazine herbicides, systemic toxicity unlikely unless large amounts are ingested; May cause irritation; [EPA Pesticides, p. 121] TLV basis: hematologic, reproductive and developmental effects; 3.3 mg/kg/day is NOEL in chronic feeding studies of rats for anemia and mammary tumors. [ACGIH]

Reference Link


Exposure Assessment
Skin Designation (ACGIH)

Insufficient data


2 mg/m3, inhalable fraction


1 mg/m3, inhalable fraction

Vapor Pressure

3.0E-7 mm Hg

Reference Link

ICSC: Atrazine

Adverse Effects

Hepatotoxin, Secondary

Reproductive Toxin


IARC Carcinogen

Not Classifiable

ACGIH Carcinogen

Confirmed Animal

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap

Industrial Processes with risk of exposure: