Hexazinone
Agent Name
Hexazinone
CAS Number
51235-04-2
Formula
C12-H20-N4-O2
Major Category
Pesticides
Synonyms
3-Cyclohexyl-1-methyl-6-(dimethylamino)-s-trazine-2,4(1H,3H)-dione; 3-Cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione; 3-Cyclohexyl-6-(dimethylamino)-1-methyl-s-triazine-2,4(1H,3H)-dione; Brushkiller; DPX 3674; Gridball; Hexazinone; SHA 107201; Velpar; Velpar L; Velpar weed killer; [ChemIDplus]
Category
Herbicides, Triazine
Description
White crystals; [CAMEO]
Sources/Uses
Used as a systemic herbicide to inhibit photosynthesis in target plants; [EXTOXNET]
Comments
No studies of human exposures available; Causes hematological effects and liver toxicity in lifetime feeding studies of rats and mice and 1-year feeding studies of dogs; [ACGIH] Corrosive to eyes; [CAMEO] It is practically nontoxic by dermal exposure and slightly toxic by ingestion with an LD50 of 1690 mg/kg in rats. [EXTOXNET] For the triazine herbicides, systemic toxicity unlikely unless large amounts are ingested; May cause irritation; [EPA Pesticides, p. 121]
Reference Link #1
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
3 mg/m3, inhalable particulate matter
Vapor Pressure
0.000225 mm Hg
Reference Link #2
Adverse Effects
ACGIH Carcinogen
Not Classifiable
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: