Registration Dossier
Registration Dossier
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EC number: 943-705-7 | CAS number: 947686-05-7
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)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 3',5-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,4'-diol; 5,5'-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,2'-diol
- Cas Number:
- 947686-05-7
- Molecular formula:
- C18H18O2
- IUPAC Name:
- 3',5-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,4'-diol; 5,5'-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,2'-diol
- Test material form:
- solid
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: activated sludge from a biologic sewage treatment
Reference substance
- Reference substance:
- other: C8H5KO4 for TC (Batch no. MKBZ5705V, content 100.00 %), Na2CO3 (Batch no. 247259189 ≥ 99.5 %) and NaHCO3 (Batch no. 217256106, p.A. content 99.9 %) for IC
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 88
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Executive summary:
Because the test item is a mixture the 10-day-window does not have to be taken into ac-count. As degradation reached the pass level of 60% in the course of the test, Magnolia Officinalis Bark Extract is considered as readily biodegradable.
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