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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

skin sensitisation: in vitro
Type of information:
other: expert statement
Adequacy of study:
weight of evidence
1 (reliable without restriction)

Data source

Reference Type:
other: expert statement
Report date:

Materials and methods

Test guideline
according to guideline
other: OECD 442D
Principles of method if other than guideline:
The LuSens is an in vitro test method designed to discriminate between skin sensitising and non -sensitising chemicals. The test method is based on the same concepts as the OECD adopted KeratinoSens™ (TG 442D) by quantifying luciferase gene induction as a measure of the activation of the Keap1-Nrf2-antioxidant/electrophile response element (ARE)-dependant pathway in a genetically modified keratinocyte cell -line (Bauch et al, 2012).
GLP compliance:
Type of study:
other: Lusens

Test material

Constituent 1
Reference substance name:
sodium 2-[(2-dodecanamidoethyl)(2-hydroxyethyl)amino]acetate; sodium 2-[(2-hydroxyethyl)({2-[(9Z)-octadec-9-enamido]ethyl})amino]acetate
EC Number:
Molecular formula:
not applicable being an UVCB
sodium 2-[(2-dodecanamidoethyl)(2-hydroxyethyl)amino]acetate; sodium 2-[(2-hydroxyethyl)({2-[(9Z)-octadec-9-enamido]ethyl})amino]acetate
Test material form:
other: viscous solid
Details on test material:
Substance obtained by dehydration of an aqueous solution

Results and discussion

In vitro / in chemico

Run / experiment:
other: Lu Sens
other: as reported in the section
Remarks on result:
other: solubilities issues did not allow to assess skin sensitization in vitro

Any other information on results incl. tables

see attached expert statement

No running of the experiment was possible due to insolubility of the substance in the recommended solvents

Applicant's summary and conclusion

Interpretation of results:
other: not applicable
The substance was tested for in-vitro skin sensitization following OECD 442D. Under the experimental conditions the substance was not soluble in any of the prescribed solvents used for the testing and it was not possible to assess the skin sensitisation properties.
Executive summary:

The substance was tested for in-vitro skin sensitization following OECD 442D. The solubilisation of the test substance was determined first in DMSO, under different dilution factors, water (cell culture) and also ethanol (not recommended by the guideline). The test substance always showed precipitation after a short time ot separation of the formed emulsion. Therefore under the experimental conditions the test substance is not in the applicability domain of the test guideline and it was not possible to assess its skin sensitizing properties.