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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No study report available

Data source

Reference
Reference Type:
other: Database
Title:
Information on the chemical published in the Official Bulletin of Economy,Trade and Industry (Former title:The Official Bulletin of the Ministry of International Trade and Industry (published before Jan.6,2001))
Year:
1990
Bibliographic source:
http://www.safe.nite.go.jp/data/hazkizon/pk_e_kizon_disp.html?k_no=1024

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
2,3-xylidine
EC Number:
201-755-0
EC Name:
2,3-xylidine
Cas Number:
87-59-2
Molecular formula:
C8H11N
IUPAC Name:
2,3-dimethylaniline

Study design

Oxygen conditions:
not specified
Inoculum or test system:
activated sludge (adaptation not specified)
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
ca. 100 mg/L
Parameter followed for biodegradation estimationopen allclose all
Parameter followed for biodegradation estimation:
TOC removal
Parameter followed for biodegradation estimation:
test mat. analysis
Remarks:
HPLC
Parameter followed for biodegradation estimation:
O2 consumption

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
<= 3
Sampling time:
28 d

Applicant's summary and conclusion