Registration Dossier
Registration Dossier
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EC number: 421-720-5 | CAS number: 18085-02-4 3,4-DIACETOXY-1-BUTENE
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- 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: Data migrated from NONS with permission to refer granted by ECHA.
- Qualifier:
- according to guideline
- Guideline:
- other: 92/69/EEC, C3
- GLP compliance:
- yes
- Analytical monitoring:
- yes
- Vehicle:
- no
- Test organisms (species):
- Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)
- Test type:
- not specified
- Water media type:
- not specified
- Limit test:
- yes
- Total exposure duration:
- 72 h
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 69.98 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 69.98 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 69.98 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 69.98 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- biomass
- Validity criteria fulfilled:
- not specified
- Conclusions:
- Based on information provided by ECHA, the 72 hour ErC50 value is > 69.98 mg/L with a NOEC of 69.98 mg/L also provided.
Reference
Description of key information
Based on information provided by ECHA, the 72 hour ErC50 value is > 69.98 mg/L with a NOEC of 69.98 also provided. As the EC50 value is greater than the maximum concentration tested, no key value for chemical safety assessment is appropriate. No testing on marine species has been conducted.
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 69.98 mg/L
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
