Registration Dossier

Administrative data

Endpoint:
toxicity to microorganisms
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: Bringmann G and Kühn R (1977). Z. Wasser Abwasser Forsch. 10, 87-98.
Deviations:
not specified
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
2,2,4(or 2,4,4)-Trimethyladipic acid of Hüls AG, purity typical but not reported

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
static
Total exposure duration:
18 h

Test conditions

Details on test conditions:
Type: aquatic
Reference substance (positive control):
no

Results and discussion

Effect concentrations
Duration:
18 h
Dose descriptor:
EC10
Effect conc.:
60 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The 18 h-EC10 of 2,2,4(or 2,4,4)-trimethylhexanedioic acid for Pseudomonas putida was determined as 60 mg/l.
Executive summary:

The 18 h-EC10 of 2,2,4(or 2,4,4)-trimethylhexanedioic acid for Pseudomonas putida was determined according to Bringmann and Kühn (1977) as 60 mg/l.