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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

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

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2-dimethyl-4-methylidene-1,3-dioxolane
EC Number:
690-680-0
Cas Number:
19358-05-5
Molecular formula:
C6H10O2
IUPAC Name:
2,2-dimethyl-4-methylidene-1,3-dioxolane

Results and discussion

Effect levels
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mL/kg bw
Based on:
test mat.
Mortality:
The test item did not cause mortality at a dose level of 2000 mg/kg bw.
Clinical signs:
other: Clinical signs were observed in animals treated at 2000 mg/kg bw with the test item. These included decreased activity (3/6) and hunched back (1/6). The animals became symptom-free at the 6 hours observation after dosing until the end of the observation p
Gross pathology:
There was no evidence of the macroscopic observations in animals dosed at 2000 mg/kg bw and terminated on Day 14.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The study result triggers the following classification/labelling:
- EU directive 1999/45/EC: none
- Regulation (EC) No 1272/2008 (CLP): none
- GHS (rev. 4) 2011: CAT. 5
Executive summary:

Under the conditions of this study, the acute oral LD50 value of the test item BCS-CL73507-BCS-BS22576 (MYDO) was found to be above 2000 mg/kg bw in female CRL:(WI) rats.