Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable calculation
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other: QSAR calculation report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
QSAR calculation using ECOSAR v1.00
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1-hydroxy-2-methylpentan-3-one
EC Number:
939-893-5
Cas Number:
27970-79-2
Molecular formula:
C6 H12 O2
IUPAC Name:
1-hydroxy-2-methylpentan-3-one
Details on test material:
- Name of test material (as cited in study report): 3-Pentanone, 1-hydroxy-2-methyl-
- Analytical purity: pure substance

Test organisms

Test organisms (species):
other: green algae

Study design

Test type:
not specified
Water media type:
freshwater
Total exposure duration:
96 h

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
not specified

Applicant's summary and conclusion