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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Remarks:
The sample was sent to Ramachandra Innovis, Sri Ramachandra medical Centre, Chennai-600116, India
Type of information:
experimental study
Adequacy of study:
key study
Study period:
34 days
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Freshwater Alga and Cyanobacteria, Growth Inhibition Test)
Version / remarks:
year 2006
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2,4-Dimethylcyclohex-3-ene-1-yl)-5-methyl-(1-methylpropyl)-1,3-dioxane
EC Number:
601-499-3
Cas Number:
117933-89-8
Molecular formula:
C17H30O2
IUPAC Name:
2-(2,4-Dimethylcyclohex-3-ene-1-yl)-5-methyl-(1-methylpropyl)-1,3-dioxane
Test material form:
liquid

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes

Test organisms

Test organisms (species):
Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
72 h

Test conditions

Test temperature:
21.2°C at 0hrs to 22.8°C at 72hrs
pH:
8.3 at 0hrs to 8.6 at 72hrs
Reference substance (positive control):
not specified

Results and discussion

Effect concentrations
Key result
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
>= 100 - <= 100 mg/L
Conc. based on:
test mat.
Basis for effect:
growth rate
Remarks on result:
other: No toxic effects observed at a concentration of 100mg per litre

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
2-(2,4-Dimethylcyclohex-3-ene-1-yl)-5-methyl-(1-methylpropyl)-1,3-dioxane did not cause any or significant growth Inhiition or toxic effects in any of the Daphnia groups during the test period.
The EC50 of 2-(2,4-Dimethylcyclohex-3-ene-1-yl)-5-methyl-(1-methylpropyl)-1,3-dioxane was found to be greater than 100mg per litre.
The complete study was performed in compliance with OECD guidelines number 201.