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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1988
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Documentation insufficient for assessment

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1988

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: DIN 38412 part 11
Deviations:
not specified
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
2,2,4(or 2,4,4)-Trimethylhexanedioic acid of Hüls AG, no specific data on purity

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
24 h
Post exposure observation period:
none

Test conditions

Reference substance (positive control):
not specified

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
88.7 mg/L
Nominal / measured:
nominal

Applicant's summary and conclusion

Conclusions:
The 24 h-EC50 of 2,2,4(or 2,4,4)-trimethylhexanedioic acid for Daphnia magna was determined as 88.7 mg/l.
Executive summary:

The 24 h-EC50 of 2,2,4(or 2,4,4)-trimethylhexanedioic acid for Daphnia magna was determined according to the German standard DIN 38412 part 11 as 88.7 mg/l.