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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
February 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study done to guideline, in compliance with GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
Deviations:
no
Principles of method if other than guideline:
An optional toxicity control as suggested by OECD guideline 301F was not performed. The validity of the study is not adversely affected.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
6-isopropyl-3-methylcyclohex-2-enone
EC Number:
201-942-7
EC Name:
6-isopropyl-3-methylcyclohex-2-enone
Cas Number:
89-81-6
Molecular formula:
C10H16O
IUPAC Name:
6-isopropyl-3-methylcyclohex-2-enone
Test material form:
gas under pressure: refrigerated liquefied gas

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic, non-adapted
Duration of test (contact time):
48 d
Initial test substance concentration
Initial conc.:
30 mg/L
Based on:
test mat.

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
86
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
readily biodegradable
Executive summary:

Piperiton Racemic for Neo Extra undergoes 86% biodegradation after 28 days in the test conditions. The 10 -day window criterion is also fulfilled (13% biodegradation on day 3 and 82% on day 13).

Piperiton Racemic for Neo Extra did not inhibit the intrinsic respiration of the inoculum at the test concentration and was therefore considered to be non-toxic to the inoculum at the test concentration.

Thus, Piperiton Racemic for Neo Extra should be regarded as readily biodegradable according to this test.