Registration Dossier
Registration Dossier
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EC number: 403-830-5 | CAS number: 89331-94-2 B 290; BK 400; CK 34; DIBUTYL-N-102; DX-20; FAT NR. 40391/A; FLUORAN BLACK BD 869; FLUORAN SCHWARZ BD 869; NOIR FLUORANE BD 869; ODB-2; PSD-290; SENOR-2; TG-31; TH-108; WINCON-2
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:
- 1 989
- Report date:
- 1989
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Annex V, C6 (closed bottle test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 6'-(dibutylamino)-3'-methyl-2'-(phenylamino)spiro[isobenzofuran-1(3H),9-(9H)-xanthen]-3-one
- EC Number:
- 403-830-5
- EC Name:
- 6'-(dibutylamino)-3'-methyl-2'-(phenylamino)spiro[isobenzofuran-1(3H),9-(9H)-xanthen]-3-one
- Cas Number:
- 89331-94-2
- Molecular formula:
- C35H36N2O3
- IUPAC Name:
- 6'-(dibutylamino)-3'-methyl-2'-(phenylamino)spiro[isobenzofuran-1(3H),9-(9H)-xanthen]-3-one
Constituent 1
Study design
- Duration of test (contact time):
- ca. 28 d
Initial test substance concentration
- Initial conc.:
- ca. 40 mg/L
- Based on:
- test mat.
Reference substance
- Reference substance:
- other: Sodium benzoate
Results and discussion
% Degradationopen allclose all
- Parameter:
- not specified
- Value:
- ca. 2
- Sampling time:
- 28 d
- Parameter:
- not specified
- Value:
- ca. 1
- Sampling time:
- 28 d
- Remarks on result:
- other: Repeat experiment
- Details on results:
- 0% degradation after 1d
0% degradation after 2d
0% degradation after 3d
0% degradation after 6d
0% degradation after 8d
0% degradation after 10d
0% degradation after 14d
0% degradation after 16d
0% degradation after 21d
1% degradation after 23d
1% degradation after 27d
2% degradation after 28d
BOD5 / COD results
- Results with reference substance:
- 1% degradation after 1d
35% degradation after 2d
48% degradation after 3d
55% degradation after 6d
71% degradation after 8d
71% degradation after 10d
71% degradation after 14d
72% degradation after 16d
68% degradation after 21d
64% degradation after 23d
57% degradation after 27d
61% degradation after 28d
Applicant's summary and conclusion
- Interpretation of results:
- not inherently biodegradable
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