pyrazoxyfen

Synonyms: "paicer", "2-(4-(2,4-dichlorobenzoyl)-1,3-dimethylpyrazol-5-yloxy)acetophenone"

Source: pyrazoxyfen is a selective systemic herbicide used pre- or post-emergence, after transplanting, in paddy rice to control annual and perennial weeds.

Identifiers:

IUPAC Name: 2-[4-(2,4-dichlorobenzoyl)-2,5-dimethylpyrazol-3-yl]oxy-1-phenylethanone
CAS Number: 71561-11-0
PubChem ID: 92383
InChiKey: FKERUJTUOYLBKB-UHFFFAOYSA-N
Canonical SMILES: CC1=NN(C(=C1C(=O)C2=C(C=C(C=C2)Cl)Cl)OCC(=O)C3=CC=CC=C3)C

Structural Properties:

Molecular Formula: C20H16Cl2N2O3
Molecular Weight: 403,259

Pharmacophore Features:

Number of bond donors: 0
Number of bond acceptors: 4
Number of atoms different from hydrogen: 27

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Toxicological Information

ACToR (Aggregated Computational Toxicology Resource)

Evidence Supporting This Chemical as an Endocrine Disruptor
TEDX List of Potential Endocrine Disruptors


Kojima H, Katsura E, Takeuchi S, Niiyama K, Kobayashi K. 2004. Screening for estrogen and androgen receptor activities in 200 pesticides by in vitro reporter gene assays using Chinese hamster ovary cells. Environ Health Perspect 112(5):524-531.

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