α,α-dimethylphenethyl butyrate

Toxicity to microorganisms

Administrative data

Endpoint:

activated sludge respiration inhibition testing

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test (Carbon and Ammonium Oxidation))

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

α,α-dimethylphenethyl acetate

EC Number:

205-781-3

EC Name:

α,α-dimethylphenethyl acetate

Cas Number:

151-05-3

Molecular formula:

C12H16O2

IUPAC Name:

1,1-dimethyl-2-phenylethyl acetate

Test material form:

solid

Results and discussion

Effect concentrations

Effect concentrations 1

Key result

Duration:

3 h

Dose descriptor:

NOEC

Effect conc.:

ca. 312.5 mg/L

Effect concentrations 2

Key result

Duration:

3 h

Dose descriptor:

LOEC

Effect conc.:

ca. 1 000 mg/L

Effect concentrations 3

Key result

Duration:

3 h

Dose descriptor:

EC50

Remarks:

total oxygen uptake

Effect conc.:

ca. 684 mg/L

Effect concentrations 4

Key result

Duration:

3 h

Dose descriptor:

EC50

Remarks:

heterotrophic oxygen uptake

Effect conc.:

ca. 713 mg/L

Effect concentrations 5

Key result

Duration:

3 h

Dose descriptor:

EC50

Remarks:

nitrification oxygen uptake

Effect conc.:

ca. 637 mg/L