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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin sensitisation: in chemico
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
30.09.2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
1. SOFTWARE
DEREK Nexus

2. MODEL (incl. version number)
Derek KB 2020 1.0

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
CC(C)(C)OC(=O)N1C[C@@H](C[C@H]1C(=O)O)O

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
- Defined endpoint: Skin Sensitization

Data source

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

Materials and methods

Principles of method if other than guideline:
In silico prediction
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
(2S,4R)-1-[(tert-butoxy)carbonyl]-4-hydroxypyrrolidine-2-carboxylic acid
EC Number:
604-011-7
Cas Number:
13726-69-7
Molecular formula:
C10H17NO5
IUPAC Name:
(2S,4R)-1-[(tert-butoxy)carbonyl]-4-hydroxypyrrolidine-2-carboxylic acid

In chemico test system

Details on the study design:
An in silico prediction of the endpoint sensitization was conducted using the software tool DEREK Nexus (2020 1.0).
Input parameters: SMILES code CC(C)(C)OC(=O)N1C[C@@H](C[C@H]1C(=O)O)O

Results and discussion

In vitro / in chemico

Results
Key result
Remarks on result:
no indication of skin sensitisation
Outcome of the prediction model:
negative [in vitro/in chemico]
Other effects / acceptance of results:
DEREK Nexus: The query structure does not match any structural alerts or examples for skin sensitisation in Derek. Additionally, the query structure does not contain any unclassified or misclassified features and is consequently predicted to be a non-sensitiser.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The skin sensitizing potential of Boc-trans-4-hydroxy-L-proline was investigated in silico using the software tool DEREK Nexus. The tool gave negative prediction results. Therefore, it is concluded that Boc-trans-4-hydroxy-L-proline is a non-sensitizer.