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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2021
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
EPISUIT (LOG KOW)

2. MODEL (incl. version number)
V. 1.0

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
- SMILES: S(SC1CCCCC(=O)O)CC1
- Formular: C8H14O2S2
- Mol WT: 206.32

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
[Explain how the model fulfils the OECD principles for (Q)SAR model validation. Consider attaching the QMRF or providing a link]
- Defined endpoint: Log Kow
- Unambiguous algorithm: Fragments
- Defined domain of applicability: na
- Appropriate measures of goodness-of-fit and robustness and predictivity: na
- Mechanistic interpretation: na

5. APPLICABILITY DOMAIN
[Explain how the substance falls within the applicability domain of the model]
- Descriptor domain: na
- Structural and mechanistic domains:
-CH2- (aliphatic carbon)
-CH (aliphatic carbon)
-COOH (acid, aliphatic attach)
-SS- (disulfide)
- Similarity with analogues in the training set: na
- Other considerations (as appropriate): na

6. ADEQUACY OF THE RESULT
[Explain how the prediction fits the purpose of classification and labelling and/or risk assessment]

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ECHA Guideline on QSAR
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
5-(dithiolan-3-yl)valeric acid
EC Number:
214-071-2
EC Name:
5-(dithiolan-3-yl)valeric acid
Cas Number:
1077-28-7
Molecular formula:
C8H14O2S2
IUPAC Name:
5-(1,2-dithiolan-3-yl)pentanoic acid
impurity 1
Reference substance name:
unknown
IUPAC Name:
unknown
impurity 2
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
dihydrogen oxide
Test material form:
solid: bulk
Details on test material:
This composition is the usual techical grade of AlzChem AG. It will be used when test substance has this composition (or is very closed) or no specific information is available

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
3.4
Temp.:
25 °C
Remarks on result:
other: Temperature and pH not given by EPISUITE

Applicant's summary and conclusion

Conclusions:
Coefficient: n-Octanol/Water calculated by EPISUITE is 3.40
Executive summary:

Coefficient: n-Octanol/Water calculated by EPISUITE is 3.40