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Diss Factsheets

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1989
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: report, but insufficient documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
Deviations:
not specified
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2'-methoxyacetoacetanilide
EC Number:
202-131-0
EC Name:
2'-methoxyacetoacetanilide
Cas Number:
92-15-9
Molecular formula:
C11H13NO3
IUPAC Name:
N-(2-methoxyphenyl)-3-oxobutanamide

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

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

Test conditions

Test temperature:
25-28°C
pH:
6.8 - 7.5

Results and discussion

Effect concentrationsopen allclose all
Duration:
16.5 h
Dose descriptor:
EC10
Effect conc.:
> 1 000 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Duration:
16.5 h
Dose descriptor:
EC50
Effect conc.:
> 1 000 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Remarks:
reliable source
Conclusions:
no need for classification
Executive summary:

There is no need for classification of the test item since EC 10/EC 50 > 1000 mg/L