Bifenox
Agent Name
Bifenox
CAS Number
42576-02-3
Formula
C14-H9-Cl2-N-O5
Major Category
Pesticides
Synonyms
5-(2,4-Dichlorophenoxy)-2-nitrobenzoic acid methyl ester; MC-4379; Methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate; Modown; [ChemIDplus]
Category
Herbicides, Protox-Inhibiting
Description
Yellowish tan solid; [Merck Index] Yellow crystalline solid; [MSDSonline]
Sources/Uses
Used as a herbicide for control of annual broad leaved weeds and grasses in cereals, maize, soy beans, rice, and other crops; [HSDB]
Comments
The protox inhibitor herbicides (Fomesafen, Oxadiazon, Lactofen, Sulfentrazone, Carfentrazone-ethyl, Oxyfluorofen and Bifenox) can disrupt porphyrin metabolism; "It has been speculated that a transient form of porphyria variegate may occur following a massive exposure or long-term exposure to lower doses." Effects in 4 week high-dose feeding study with rats include increase in liver weights; [HSDB] See "Fluthiacet-methyl."
Restricted
Cancelled--no longer registered as a pesticide for use in the US; [HSDB]
Reference Link #1
Biomedical References
Exposure Assessment
Vapor Pressure
1E-07 mm Hg
Lethal Concentration
LC50 (rat) > 910 mg/m3
Adverse Effects
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: