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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Not specified
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP (taken from SNIF file). Registrant referring to studies >12 years old at the permission of ECHA.

Data source

Reference Type:
other: Body responsible for the test
Report date:

Materials and methods

Test guideline
according to guideline
EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
GLP compliance:

Test material

Constituent 1
Reference substance name:
EC Number:
EC Name:
Cas Number:
Molecular formula:
Not applicable ( a generic molecular formula cannot be provided for this UVCB substance)
Reaction products of phosphorous trichloride, with 1,1′-biphenyl and 2,4-bis(1,1-dimethylethyl)phenol
Details on test material:
no data
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
no data

Study design

Oxygen conditions:
not specified
Inoculum or test system:
not specified
Details on inoculum:
no data
Details on study design:
no data
Reference substance
Reference substance:
benzoic acid, sodium salt

Results and discussion

% Degradation
not specified
Sampling time:
28 d
Remarks on result:
other: No further information is available from the SNIF file.
Details on results:
Points of degradation plot (test substance):

0 % degradation after 7 d
0% degradation after 14 d
0 % degradation after 21 d
0 % degradation after 27 d
0 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):

81.5 % degradation after 7 d
87.5% degradation after 14 d
90 % degradation after 21 d
90 % degradation after 27 d
90 % degradation after 28 d

Any other information on results incl. tables

The toxicity control at a concentration of the substance at 100 mg/l (nominal concentration) had no inhibitory effects on the inoculum.

Applicant's summary and conclusion

Validity criteria fulfilled:
Interpretation of results:
under test conditions no biodegradation observed
Not readily biodegradable.
Executive summary:

Information from migrated NONS file, as per inquiry number 06-0000020725-70-0000, permission to refer granted by ECHA.

Study conducted to GLP (taken from SNIF file). Registrant referring to studies >12 years old at the permission of ECHA.


Not readily biodegradable.