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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Acute Toxicity: oral

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Documentation insufficient for assessment (questionable validity of the primary data source (IBT); reliability score from OECD SIDS Draft for Maleic Acid: 2)

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
BIOFAX Data Sheet 7-4/70
Author:
Industrial Bio-Test Laboratories Inc.
Year:
1970
Bibliographic source:
cited in Bibra International Ltd: Toxicity Profile - Maleic Acid, 1990
Reference Type:
secondary source
Title:
BIOFAX Data Sheet 7-4/70
Author:
Industrial Bio-Test Laboratories Inc.
Year:
1970
Bibliographic source:
cited in NIOSH, 1985
Reference Type:
secondary source
Title:
OECD SIDS
Author:
OECD SIDS
Year:
2005
Bibliographic source:
cited in OECD SIDS Draft Maleic Acid 01.09.2005

Materials and methods

Principles of method if other than guideline:
Unspecified test to determine the acute oral toxicity of maleic acid in rats.
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
Details on test material:
Maleic acid, no data on purity

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
other: no data
Vehicle:
not specified
Doses:
no data
No. of animals per sex per dose:
no data

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
708 mg/kg bw

Applicant's summary and conclusion