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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
publication
Title:
1-Octadecanethiol Screening Test
Author:
Chemicals Inspection and Testing Institute
Year:
1992
Bibliographic source:
Biodegradation and Bioaccumulation Data of Existing Chemicals Based on the CSCL Japan
Report date:
1992

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Octadecane-1-thiol
EC Number:
220-744-1
EC Name:
Octadecane-1-thiol
Cas Number:
2885-00-9
Molecular formula:
C18H38S
IUPAC Name:
octadecane-1-thiol
Test material form:
solid: bulk

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge (adaptation not specified)
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
0.001 µg/L
Based on:
test mat.

Results and discussion

% Degradation
Key result
Parameter:
% degradation (O2 consumption)
Value:
1
Sampling time:
28 d

Applicant's summary and conclusion

Interpretation of results:
not readily biodegradable
Conclusions:
Not readily biodegradable - mainly due to the low water of solubility.