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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Study period:
March 1994
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
ISO 6341 (Water quality - Determination of the Inhibition of the Mobility of Daphnia magna Straus (Cladocera, Crustacea))
Version / remarks:
and in accordance with OECD 202
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Iohexol
EC Number:
266-164-2
EC Name:
Iohexol
Cas Number:
66108-95-0
Molecular formula:
C19H26I3N3O9
IUPAC Name:
5-[acetyl(2,3-dihydroxypropyl)amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide

Test organisms

Test organisms (species):
Daphnia magna

Study design

Total exposure duration:
48 h

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 3 200 mg/L
Basis for effect:
other: immobilised

Applicant's summary and conclusion