Teflubenzuron

Overview

Chemical Names
1-(3,5-dichloro-2,4-difluorophenyl)-3-(2,6-difluorobenzoyl)urea
CAS number
83121-18-0
Functional Class
Veterinary Drug
INSECTICIDE
Veterinary Drug

Evaluations

Evaluation year: 2015

ADI:
0–5 µg/kg bw

Comments:
BMDL10 of 0.54 mg/kg bw per day for hepatocellular hypertrophy in male mice observed in the carcinogenicity study, with application of an uncertainty factor of 100. No acute hazard.
MRL Comment:
The recommended MRL for teflubenzuron in salmon fillet (muscle plus skin in natural proportion) and in salmon muscle is 400 µg/kg.
Intake:
14 to 43% of the ADI for EDI and GECDE respectively.
Tox Monograph: 

Toxicological study

Pivotal Study:
Eighteen-month carcinogenicity study (diet) in mouse.