1,4-dimethoxy-2-nitrobenzene

Biodegradation in water: screening tests

Administrative data

Endpoint:

biodegradation in water: ready biodegradability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1992 - 1993

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: study conducted according to current guideline

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1993

Report date:

1993

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)

Deviations:

not specified

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

1,4-dimethoxy-2-nitrobenzene

EC Number:

201-903-4

EC Name:

1,4-dimethoxy-2-nitrobenzene

Cas Number:

89-39-4

Molecular formula:

C8H9NO4

IUPAC Name:

1,4-dimethoxy-2-nitrobenzene

Study design

Oxygen conditions:

aerobic

Inoculum or test system:

activated sludge, domestic, non-adapted

Details on inoculum:

Source: Domestic waste water treatment plant Frankfurt am Main/Sindlingen

Duration of test (contact time):

28 d

Initial test substance concentration

Initial conc.:

35 mg/L

Based on:

DOC

Parameter followed for biodegradation estimation

Parameter followed for biodegradation estimation:

DOC removal

Reference substance

Reference substance:

benzoic acid, sodium salt

Results and discussion

% Degradation

Parameter:

% degradation (DOC removal)

Value:

38

Sampling time:

28 d

Applicant's summary and conclusion

Validity criteria fulfilled:

yes

Interpretation of results:

other: not readily biodegradable

Conclusions:

The test item was not readily biodegradable under the test conditions of OECD 301E