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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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