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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to microorganisms, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1991-11-13 to 1991-11-14
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to guideline
Guideline:
DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
GLP compliance:
no
Analytical monitoring:
no
Vehicle:
no
Test organisms (species):
Pseudomonas putida
Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
16 h
Nominal and measured concentrations:
Nominal: 500 and 1000 mg/L
Measured: not determined
Reference substance (positive control):
yes
Remarks:
2,4-Dichlorphenol
Key result
Duration:
16 h
Dose descriptor:
EC50
Effect conc.:
> 1 000 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Key result
Duration:
16 h
Dose descriptor:
EC10
Effect conc.:
> 1 000 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Validity criteria fulfilled:
yes
Conclusions:
The test item is not toxic to Pseudomonas putida.
Executive summary:

In a study according to DIN 38412 -8, the test item is found to be not toxic to Pseudomonas putida.

EC50 > 1000 mg/L

EC10 > 1000 mg/L

Description of key information

The test item is not toxic to Pseudomonas putida.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1 000 mg/L

Additional information

The test item is not toxic to Pseudomonas putida.

EC50 > 1000 mg/L

EC10 > 1000 mg/L

The reported effect concentrations refer to the commercial formulation containing 46.2% (w/w) of the REACH registration substance which reflects the test item used in the study.