Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1989
Reliability:
1 (reliable without restriction)

Data source

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

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
no guideline available
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Sodium diisobutylnaphthalenesulphonate
EC Number:
248-326-4
EC Name:
Sodium diisobutylnaphthalenesulphonate
Cas Number:
27213-90-7
Molecular formula:
Not applicable (UVCB substance)
IUPAC Name:
sodium 2,3-bis(2-methylpropyl)naphthalene-1-sulfonate
Test material form:
solid: particulate/powder

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
not specified
Water media type:
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
17 h
Dose descriptor:
EC10
Effect conc.:
850 mg/L
Nominal / measured:
nominal
Duration:
17 h
Dose descriptor:
EC50
Effect conc.:
1 000 mg/L
Nominal / measured:
nominal
Duration:
17 h
Dose descriptor:
other: EC90
Effect conc.:
1 200 mg/L
Nominal / measured:
nominal

Applicant's summary and conclusion

Conclusions:
The EC50 for Pseudomonas putida after 17 hours is 1000 mg/L.