Trimethyloctylammonium methyl sulphate

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:

2019.03.12~2019.05.17

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

Adopted : 1992-07-17

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Trimethyloctylammonium methyl sulphate

EC Number:

265-332-2

EC Name:

Trimethyloctylammonium methyl sulphate

Cas Number:

65059-42-9

Molecular formula:

C11H26N.CH3O4S

IUPAC Name:

trimethyl(octyl)azanium methyl sulfate

Test material form:

solid: bulk

Study design

Inoculum or test system:

sewage, domestic, adapted

Details on inoculum:

Cultured inoculum (more than 1 month), cell number 107 cells/mL or more

Duration of test (contact time):

ca. 28 d

Results and discussion

% Degradation

% Degradation 1

Parameter:

% degradation (O2 consumption)

Value:

ca. 83

Sampling time:

7 d

% Degradation 2

Parameter:

% degradation (O2 consumption)

Value:

ca. 76.1

Sampling time:

14 d

% Degradation 3

Parameter:

% degradation (O2 consumption)

Value:

ca. 84.5

Sampling time:

28 d

Applicant's summary and conclusion

Validity criteria fulfilled:

yes

Interpretation of results:

readily biodegradable

Conclusions:

The test could be concluded to be readily degradable by microorganism in the aquatic environment based on the OECD pass level of biodegradability (60 %).