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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Handbook data are considered to be from a trusted source

Data source

Reference
Reference Type:
review article or handbook
Title:
Handbook of Environmental Data on Organic Chemicals, Vol. 2, 4th ed., p. 1397
Author:
K. Verschueren
Year:
2001
Bibliographic source:
New York, Chichester, Weinheim, John Wiley & Sons, Inc.

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.2 (Acute Toxicity for Daphnia)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Maleic acid
EC Number:
203-742-5
EC Name:
Maleic acid
Cas Number:
110-16-7
Molecular formula:
C4H4O4
IUPAC Name:
but-2-enedioic acid

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
200 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion