2-methylpent-2-enal

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: Non-GLP guideline test with acceptable restricitions

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1990

Report date:

1990

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

2-methylpent-2-enal

EC Number:

210-789-5

EC Name:

2-methylpent-2-enal

Cas Number:

623-36-9

Molecular formula:

C6H10O

IUPAC Name:

2-methylpent-2-enal

Study design

Oxygen conditions:

aerobic

Inoculum or test system:

activated sludge, domestic, non-adapted

Details on inoculum:

- Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): laboratory scale STP treating domestic and synthetic sewage

Duration of test (contact time):

28 d

Initial test substance concentration

Initial conc.:

101 mg/L

Details on study design:

TEST CONDITIONS
- Composition of medium: according to guideline

TEST SYSTEM
- Culturing apparatus: Sapromat, brown glass vessels, 250 ml volume

Reference substance

Reference substance:

aniline

Results and discussion

% Degradation

% Degradation 1

Parameter:

% degradation (O2 consumption)

Value:

58

Sampling time:

28 d

Remarks on result:

other: biotic degradation

% Degradation 2

Parameter:

% degradation (O2 consumption)

Value:

26

Sampling time:

28 d

Remarks on result:

other: abiotic elimination

Applicant's summary and conclusion

Interpretation of results:

other: biodegradable