Registration Dossier
Registration Dossier
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EC number: 429-300-3 | CAS number: 155601-30-2 PYRAZOL P5; PYRAZOLE DHE
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP complicance, not OECD guideline
Data source
Reference
- Reference Type:
- other: inquiry result from ECHA
- Title:
- Unnamed
- Year:
- 2 014
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: 92/69/EWG, C.3
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1-(2-hydroxyethyl)-1H-pyrazol-4,5-diyldiammoniumsulfate
- EC Number:
- 429-300-3
- EC Name:
- 1-(2-hydroxyethyl)-1H-pyrazol-4,5-diyldiammoniumsulfate
- Cas Number:
- 155601-30-2
- Molecular formula:
- C5H12N4O5S
- IUPAC Name:
- 1-(2-hydroxyethyl)-1H-pyrazol-4,5-diyldiammoniumsulfate
Constituent 1
Test solutions
- Details on test solutions:
- Identity and concentration of auxiliary solvent for dispersal: None
Test organisms
- Test organisms (species):
- Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)
Study design
- Limit test:
- no
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 5.33 mg/L
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 62.57 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 1.8 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- < 1 mg/L
- Basis for effect:
- biomass
Applicant's summary and conclusion
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