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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method C.2 (Acute Toxicity for Daphnia)
Qualifier:
according to guideline
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-butyl-4-chloro-4,5-dihydro-5-hydroxymethyl-1-[2'-(2-triphenylmethyl-1,2,3,4-2H-tetrazol-5-yl)-1,1'-biphenyl-4-methyl]-1H-imidazole
EC Number:
412-420-5
EC Name:
2-butyl-4-chloro-4,5-dihydro-5-hydroxymethyl-1-[2'-(2-triphenylmethyl-1,2,3,4-2H-tetrazol-5-yl)-1,1'-biphenyl-4-methyl]-1H-imidazole
Cas Number:
133909-99-6
Molecular formula:
C41H37ClN6O
IUPAC Name:
[2-butyl-4-chloro-1-({2'-[2-(triphenylmethyl)-2H-1,2,3,4-tetrazol-5-yl]-[1,1'-biphenyl]-4-yl}methyl)-1H-imidazol-5-yl]methanol

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
semi-static
Water media type:
freshwater

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 0.07 mg/L
Nominal / measured:
meas. (arithm. mean)
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 0.07 mg/L
Nominal / measured:
meas. (arithm. mean)
Duration:
48 h
Dose descriptor:
EC100
Effect conc.:
>= 0.07 mg/L
Nominal / measured:
meas. (arithm. mean)

Any other information on results incl. tables

No observed effect concentration after 48h : >=0.07 mg/l

Applicant's summary and conclusion