Registration Dossier
Registration Dossier
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EC number: 291-826-2 | CAS number: 90480-88-9
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:
- 19 May 2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The quoted value is an estimate based on an internationally recognised modelling programme.
- Justification for type of information:
- QSAR prediction: migrated from IUCLID 5.6
Data source
Reference
- Reference Type:
- other: QSAR
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
- Principles of method if other than guideline:
- The structure-activity relationships (SARs) presented in this program are used to predict the aquatic toxicity of chemicals based on their similarity of structure to chemicals for which the aquatic toxicity has been previously measured. Most SAR calculations in the ECOSAR Class Program are based upon the octanol/water partition coefficient (Kow). Various surfactant SAR calculations are based upon the average length of carbon chains or the number of ethoxylate units.
- GLP compliance:
- no
Test material
- Reference substance name:
- Phenol, isopropylated
- EC Number:
- 291-826-2
- EC Name:
- Phenol, isopropylated
- Cas Number:
- 90480-88-9
- Molecular formula:
- Not appropriate to the UVCB substance
- IUPAC Name:
- 2,4-bis(propan-2-yl)phenol; 2-(propan-2-yl)phenol; 4-(propan-2-yl)phenol; phenol
- Details on test material:
- Name: Isopropylated phenol
Constituent 1
Test organisms
- Details on test organisms:
- Green algae
Study design
- Test type:
- other: QSAR
Results and discussion
Effect concentrations
- Duration:
- 96 h
- Dose descriptor:
- EC50
- Effect conc.:
- 5.28 mg/L
- Conc. based on:
- test mat.
- Remarks on result:
- other: Range: 0.23 to 44.824 mg/L
Any other information on results incl. tables
The substance is a UVCB therefore various structures were assessed (see Appendix I of QPRF attached below for details of the structure).
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The toxicity of the substance to algae was assessed using ECOSAR v1.00, a QSAR driven by the EPI Suite v4.10. The mean 48 hour LC50 is 5.28 mg/L with a range of 0.23 mg/L to 44.8 mg/L.
- Executive summary:
The toxicity of the substance to algae was assessed using ECOSAR v1.00, a QSAR driven by the EPI Suite v4.10. The mean 48 hour LC50 is 5.28 mg/L with a range of 0.23 mg/L to 44.8 mg/L.
The substance is a UVCB therefore various structures were assessed.
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