Registration Dossier
Registration Dossier
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EC number: 700-475-0 | CAS number: 145783-14-8
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:
- study report
- Title:
- Unnamed
- Year:
- 2 004
- Report date:
- 2004
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 4,6-dichloro-5-nitro-2-(propylsulfanyl)pyrimidine
- EC Number:
- 700-475-0
- Cas Number:
- 145783-14-8
- Molecular formula:
- C7H7Cl2N3O2S
- IUPAC Name:
- 4,6-dichloro-5-nitro-2-(propylsulfanyl)pyrimidine
Constituent 1
Study design
- Duration of test (contact time):
- 28
Reference substance
- Reference substance:
- other: Sodium acetate
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- < 5
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
<5 % degradation after 5 d
<5% degradation after 8 d
<5 % degradation after 15 d
<5 % degradation after 20 d
<5 % degradation after 28 d
BOD5 / COD results
BOD5 / CODopen allclose all
- Parameter:
- COD
- Value:
- 1.12 g O2/g test mat.
- Parameter:
- BOD5
- Value:
- < 0.05 g O2/g test mat.
- Results with reference substance:
- Points of degradation plot (reference substance):
62 % degradation after 5 d
73 % degradation after 8 d
74 % degradation after 15 d
69 % degradation after 20 d
59 % degradation after 28 d
Applicant's summary and conclusion
- Interpretation of results:
- other: not readily biodegradable
- Conclusions:
- not readily biodegradable
- Executive summary:
The COD of the test substance was determined as 1.12 g O2 /g
and the BOD values after 5 and 28 days were both < 0.05 g O2 /g. The percentage degradation was
calculated as (BOD/COD)*100.
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