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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
short-term toxicity to fish
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Analytical monitoring is missing; deviation in test: temperature of test water lower as required by species.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
yes
Remarks:
Analytical monitoring is missing; temperature of test water lower as required by species
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
(Z)-2-(8-heptadecenyl)-4,5-dihydro-1H-imidazole-1-ethanol
EC Number:
244-501-4
EC Name:
(Z)-2-(8-heptadecenyl)-4,5-dihydro-1H-imidazole-1-ethanol
Cas Number:
21652-27-7
IUPAC Name:
2-(2-heptadec-8-en-1-yl-4,5-dihydro-1H-imidazol-1-yl)ethanol

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Danio rerio (previous name: Brachydanio rerio)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
96 h

Test conditions

Hardness:
2.466 mmol/L
Test temperature:
20 °C +/- 1 °C
pH:
7.91-8.10 (initial)
8.01-8.21 (end of test)
Dissolved oxygen:
75.2-85.8 % saturation (initial)
89.5-91.5 % saturation (end of test)
Nominal and measured concentrations:
Nominal concentrations: 0.0625, 0.125, 0.25, 0.5, 1.0 mg/L
No measured concentrations available
Reference substance (positive control):
no

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
0.35 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
A LC50 of 0.35 mg/L was determined when Danio rerio was exposed to (Z)-2-(8-Heptadecenyl)-4,5-dihydro-1H-imidazole-1-ethanol for 96 hours.
Executive summary:

An acute acute fish toxicity test according to OECD Guideline 203 was carried out with (Z)-2-(8-Heptadecenyl)-4,5-dihydro-1H-imidazole-1-ethanol in zebra fish (danio rerio). A LC50 of 0.35 mg/L was determined.