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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study according to EU/OECD-guidelines.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
GLP compliance:
yes (incl. QA statement)
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
sodium 4-(methoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate
EC Number:
627-063-2
Cas Number:
1134960-41-0
Molecular formula:
C6H5O5Na
IUPAC Name:
sodium 4-(methoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate

Test animals

Species:
rat
Strain:
Wistar
Sex:
female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
6 animals, 3 animals/group
Control animals:
no

Results and discussion

Effect levels
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
The test substance did not cause mortality at a dose level of 2000 mg/kg bw.
Clinical signs:
other: Treatment with the test substance did not cause any clinical signs during the 14 days observation period.
Gross pathology:
No macroscopic observations were seen in animals dosed at 2000 mg/kg bw and terminated on Day 14.

Any other information on results incl. tables

Mortality

BYI 02960-BCS-CL71543 (Na-CMTS) did not cause mortality at a dose level of 2000 mg/kg bw.

Clinical observations

Treatment with BYI 02960-BCS-CL71543 (Na-CMTS) did not cause any clinical signs during the 14 days observation period.

Body weight and body weight gain

Body weight and body weight gain of BYI 02960-BCS-CL71543 (Na-CMTS) treated animals showed no indication of a treatment-related effect.

Macroscopic Findings

No macroscopic observations were seen in animals dosed at 2000 mg/kg bw and terminated on Day 14.

Applicant's summary and conclusion

Interpretation of results:
Toxicity Category IV
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Under the conditions of this study, the acute oral LD50 value of the test item was found to be above 2000 mg/kg bw in female CRL:(WI) rats.
The test substance is non-toxic after acute oral administration at dose level of 2000 mg/kg bw.
The study result triggers the following classification/labelling:
- EU Directive 1999/45/EC (as amended): none
- Regulation (EC) No 1272/2008 (CLP): none
- GHS (rev. 4) 2011: unclassified