Registration Dossier
Registration Dossier
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EC number: 854-560-3 | CAS number: 1891094-25-9
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental started November 29th 2016 and finished December 27th 2016 . The final report was issued Jan 12th 2017.
- Reliability:
- 1 (reliable without restriction)
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 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- hexasodium 5,5'-{[2,7-disulfonato-9-(2-sulfonatophenyl)-9H-xanthene-9-ylium-3,6-diyl]bis(azanediyl)bis[(2,4,6-trimethyl-3,1-phenylene)aminosulfonyl]}diisophthalate
- EC Number:
- 854-560-3
- Cas Number:
- 1891094-25-9
- Molecular formula:
- C53H38N4Na6O22S5
- IUPAC Name:
- hexasodium 5,5'-{[2,7-disulfonato-9-(2-sulfonatophenyl)-9H-xanthene-9-ylium-3,6-diyl]bis(azanediyl)bis[(2,4,6-trimethyl-3,1-phenylene)aminosulfonyl]}diisophthalate
- Test material form:
- solid: particulate/powder
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 44.7
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Based on the study results, it can be concluded that the test substance does not undergo breakdown by factors such as microbial organisms.
- Executive summary:
Introduction
The study was carried out to understanding the degradation of the test substance by microbial organism,with use of factors such as microbial degradation of chemical substances and the "Ready Biodegradability Modified MITI Test
(I)", which is described in the "OECD Guidelines for Testing of Chemicals 301C" of July 17,1992.
Results and conclusion
After 28 days of experimental conditions indicated that the average degradation rate using the BOD method was 0%, using the HPLC method was 0%, and using the TOC method was 1%. Based on the experimental findings, the test substance is not degraded by microbial activity.
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