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EC number: 205-617-0 | CAS number: 144-15-0
Table: Summary of test item-related findings for ATBC
Intended test item intake (mg/kg bw/day)
Alb/Glob ratio (rel., %)
Males (abs., gram)
Males (rel., %)
Females (abs., gram
Females (rel., %)
Liver (no. affected/10)
Males: Hepatocellular hypertrophy
Females: Hepatocellular hypertrophy
This 13-weeks dietary toxicity study with acetyl tributyl citrate (ATBC) in Wistar rats was designed as dose range finding study for a subsequent combined chronic/carcinogenicity study. In principle, the study was performed according to OECD Guideline 408, but with restricted histopathological organ examinations. The administration at target doses of 100, 300 and 1000 mg/kg bw/d resulted in no unscheduled deaths. No test item-related clinical signs were observed. Treatment-related findings were restricted to slight changes in clinical biochemistry (males were more affected than females) and slightly increased liver weights accompanied by minimal hepatocellular hypertrophy at 1000 mg/kg bw/d. The findings were considered to be due to hepatic metabolic adaption rather than as sign of toxicity. The highest dose of 1000 mg/kg bw can be regarded as NOAEL. The proposed dose levels for a subsequent combined chronic/carcinogenicity study were 100, 300 and 1000 mg/kg bw/d. It can be assumed that the same applies to tris(2-ethylhexyl) 2-(acetyloxy)propane-1,2,3-tricarboxylate (CAS 144 -15 -0) as it is a near analogue to the test substance acetyl tributyl citrate.
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