Registration Dossier
Registration Dossier
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EC number: 921-910-2 | CAS number: -
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:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2-(carbamoyloxy)propyl N-[(3-{[3,5-bis({5-[({[2-(carbamoyloxy)propoxy]carbonyl}amino)methyl]-1,3,3-trimethylcyclohexyl}methyl)-2,4,6-trioxo-1,3,5-triazinan-1-yl]methyl}-3,5,5-trimethylcyclohexyl)methyl]carbamate
- EC Number:
- 921-910-2
- IUPAC Name:
- 2-(carbamoyloxy)propyl N-[(3-{[3,5-bis({5-[({[2-(carbamoyloxy)propoxy]carbonyl}amino)methyl]-1,3,3-trimethylcyclohexyl}methyl)-2,4,6-trioxo-1,3,5-triazinan-1-yl]methyl}-3,5,5-trimethylcyclohexyl)methyl]carbamate
- Test material form:
- solid
- Details on test material:
- - Analytical purity: 83.9 g/100g
- Composition of test material, percentage of components: 0.2g/100g water, 13.4g/100g n-butyl acetate, 2.5g/100g 1,2-propanediol, monocarbamate
- Lot/batch No.: 389-48
- Expiration date of the lot/batch: 2019-05-23
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Municipal activated sludge from the wastewater treatment plant of Mannheim, Germany.
The inoculum was collected on 16 January 2017 from the aeration tank of the plant. A
suitable aliquot of the activated sludge suspension was sieved by a finely woven mesh
with a mesh size about 1 mm. To reduce the content of inorganic carbon in the blank
controls the activated sludge was aerated with carbon dioxide free air for about 48 hours
at 22 ± 2° C. - Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 36 mg/L
- Based on:
- test mat.
- Initial conc.:
- 20 mg/L
- Based on:
- TOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST CONDITIONS
- Test temperature: 22 ± 2 °C
CONTROL AND BLANK SYSTEM
2 blank control assays (BC)
2 test substance assays (TS)
1 inhibition control test assay (IH)
1 reference substance assay (RS)
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- > 10 - < 20
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- 74 % CO2/ThCO2 after 14 days
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
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