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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: oral
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
December 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Title:
T.E.S.T (Toxicity Estimation Software Tool) v4.2.1
Year:
2016
Bibliographic source:
Model developed by U.S. EPA/National Risk Management Research Laboratory/Sustainable Technology Division

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
3-~{O}-(2-ethoxy-2-oxoethyl) 1-~{O}-ethyl propanedioate
Cas Number:
100074-94-0
Molecular formula:
C9H14O6
IUPAC Name:
3-~{O}-(2-ethoxy-2-oxoethyl) 1-~{O}-ethyl propanedioate
Specific details on test material used for the study:
SMILES: CCOC(=O)CC(=O)OCC(=O)OCC

Test animals

Species:
rat

Results and discussion

Effect levels
Key result
Dose descriptor:
LD50
Effect level:
7 285.85 mg/kg bw
Remarks on result:
other: QSAR predicted value

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The estimated value for 2-ethoxy-2-oxoethyl ethyl malonate applying TEST models for LD50 (oral) was 7285.85 mg/kg bw (>2000 mg/kg bw). The prediction, falls inside the applicability domain of the model and is considered reliable.
CLP criteria are not met.
Executive summary:

Regulatory purpose: This study was designed to generate estimated in silico (nontesting) data for acute oral toxicity in rat for 2-ethoxy-2-oxoethyl ethyl malonate to be used in the regulatory framework of REACH.

LD50 (oral) = 7285.85 mg/kg bw.