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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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, other
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Only short reporting of results available.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1990

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:
2,4,6-tri-sec-butylphenol
EC Number:
227-572-6
EC Name:
2,4,6-tri-sec-butylphenol
Cas Number:
5892-47-7
Molecular formula:
C18H30O
IUPAC Name:
2,4,6-tris(butan-2-yl)phenol
Test material form:
liquid

Test organisms

Test organisms (species):
Pseudomonas putida

Results and discussion

Effect concentrationsopen allclose all
Dose descriptor:
EC10
Effect conc.:
52.4 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
growth inhibition
Dose descriptor:
EC50
Effect conc.:
647.6 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
growth inhibition
Dose descriptor:
EC100
Effect conc.:
> 1 000 mg/L
Nominal / measured:
nominal
Conc. based on:
not specified
Basis for effect:
growth inhibition

Applicant's summary and conclusion

Conclusions:
A toxicity test to microorganism according to DIN 38412 Part8 resulted in EC50=647.6 mg/l.
Executive summary:

A toxicity test to microorganism according to DIN 38412 Part8 resulted in EC50=647.6 mg/l.