Registration Dossier
Registration Dossier
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EC number: 947-802-5 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- February - March 2018
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- Ecotoxicity by QSAR based on the substance constituents
- Justification for type of information:
- No experimental study has been performed but reliable QSAR: please refer to Attached Justification enclosed document.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Guideline:
- other: REACH Guidelaine on QSAR R.6
- Principles of method if other than guideline:
- QSAR model adapted specifically from test guideline: OECD 201, EU C.3
Test material
- Reference substance name:
- benzyltetradecyldimethylammonium bromide
- Cas Number:
- 18773-88-1
- Molecular formula:
- C23H42N.Br
- IUPAC Name:
- benzyltetradecyldimethylammonium bromide
Constituent 1
Results and discussion
Effect concentrations
- Key result
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Remarks:
- ErC50
- Effect conc.:
- ca. 0.007 mg/L
- Details on results:
- 95% confidence limits (mg test item.L-1): 0.0050 - 0.0099
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- see QRMF and QRPF
- Conclusions:
- Algae ErC50=0,0070 mg/L
- Executive summary:
Prediction for OECD 201 test result by Holistic HA-QSAR iSafeRat model
Algae ErC50=0,0070 mg/L for benzyltetradecyldimethylammonium bromide
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