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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2017-05-12
Reliability:
2 (reliable with restrictions)
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
Justification for type of information:
1. SOFTWARE
EPISUITE v4.11
See attached justification

2. MODEL (incl. version number)
MPBPWIN v1.43 (September 2010)

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
SMILES: C1C(=O)OCC(=O)O1
CAS: 502-97-6

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
For detailed information about the used model please refer to the attached justification.

5. APPLICABILITY DOMAIN
For detailed information about the used model please refer to the attached justification.

6. ADEQUACY OF THE RESULT
For detailed information about the used model please refer to the attached justification.

Data source

Reference
Reference Type:
other: QSAR prediction report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Software tool(s) used including version: The Estimation Programs Interface (EPI) SuiteTM v4.1
- Model(s) used: MPBPWIN v1.43 (September 2010)
- Model description: see field 'Attached justification'
- Justification of QSAR prediction: see field 'Attached justification'
GLP compliance:
no
Type of method:
other: QSAR prediction
Remarks:
MPBPWIN Program, Version 1.43, Syracuse Research Cor-poration

Test material

1
Chemical structure
Reference substance name:
1,4-dioxane-2,5-dione
EC Number:
207-954-9
EC Name:
1,4-dioxane-2,5-dione
Cas Number:
502-97-6
Molecular formula:
C4H4O4
IUPAC Name:
1,4-dioxane-2,5-dione
Test material form:
other: not applicable for in silico study

Results and discussion

Vapour pressure
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0.14 Pa
Remarks on result:
other: QSAR prediction

Applicant's summary and conclusion

Conclusions:
The present QSAR prediction was conducted with the EPISuite TM; MPBPWIN v1.43 software. The software uses three separate methods for vapour pressure prediction. However, the molecular weight is the main dose descriptor. The moelcular weight of 1,4-Dioxane-2,5-dione lies within the range of molecular weights obtained from the training sets. Thus, the prediction is considered to be reliable. The predicted vapour pressure of the test item is 0.14 Pa at 25°C.