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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
calculation (if not (Q)SAR)
Remarks:
ECOSAR v1.11
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other: calculation
Title:
ECOSAR v1.11
Author:
EPA
Year:
2017
Bibliographic source:
ECOSAR (Ecological Structure-Activity Relationship) Class Program for Microsoft Windows v.1.11 (24 July 2012). U.S. Environmental Protection Agency. Office of Chemical Safety and Pollution Prevention.

Materials and methods

Principles of method if other than guideline:
calculation

Test material

Constituent 1
Reference substance name:
Butan-2-ol
EC Number:
201-158-5
EC Name:
Butan-2-ol
Cas Number:
78-92-2
IUPAC Name:
butan-2-ol
Constituent 2
Reference substance name:
2-butanol
IUPAC Name:
2-butanol
Constituent 3
Reference substance name:
secondary butanol
IUPAC Name:
secondary butanol
Constituent 4
Chemical structure
Reference substance name:
Butan-1-ol
EC Number:
200-751-6
EC Name:
Butan-1-ol
Cas Number:
71-36-3
Molecular formula:
C4H10O
IUPAC Name:
butan-1-ol
Details on test material:
Material was stated to be secondary butanol, and assumed to be 100%.

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
394.678 mg/L
Remarks on result:
other: ECOSAR v1.11 calculation: Neutral Organics SAR Class

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
The calculated (ECOSAR v1.11, Neutral Organic SAR class) LC50 (48h) is 394.678 mg/L.
Executive summary:

The calculated (ECOSAR v1.11, Neutral Organic SAR class) LC50 (48h) is 394.678 mg/L.