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

EFSA: Bifenox - 2007

Exposure Assessment
Vapor Pressure

1.0E-7 mm Hg

Lethal Concentration

LC50 (rat) > 910 mg/m3

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: