2,5,6-trimethylcyclohex-2-en-1-one

Biodegradation in water: screening tests

Administrative data

Endpoint:

biodegradation in water: ready biodegradability

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Guideline study. adapted sludge was used.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1988

Report date:

1988

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

2,5,6-trimethylcyclohex-2-en-1-one

EC Number:

243-473-0

EC Name:

2,5,6-trimethylcyclohex-2-en-1-one

Cas Number:

20030-30-2

Molecular formula:

C9H14O

IUPAC Name:

2,5,6-trimethylcyclohex-2-en-1-one

Details on test material:

- Name of test material (as cited in study report): 2,3,6-Trimethylcyclohexen-1-one

Study design

Oxygen conditions:

aerobic

Inoculum or test system:

activated sludge, industrial (adaptation not specified)

Details on inoculum:

Source of incoculum: BASF treatment plant

Duration of test (contact time):

28 d

Initial test substance concentration

Initial conc.:

100 other: µl/l

Based on:

test mat.

Parameter followed for biodegradation estimation

Parameter followed for biodegradation estimation:

O2 consumption

Reference substance

Reference substance:

aniline

Results and discussion

% Degradation

Parameter:

% degradation (O2 consumption)

Value:

< 10

Sampling time:

28 d

Details on results:

Kinetic of test substance (in %):
< 10 after 28 day(s)

BOD5 / COD results

Results with reference substance:

Kinetic of control substance (in %):
< 10 after 3 day(s)
> 70 after 10 day(s)

Applicant's summary and conclusion

Interpretation of results:

other: poorly biodegradable