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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
eye irritation: in vitro / ex vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2006
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 492 (Reconstructed Human Cornea-like Epithelium (RhCE) Test Method for Identifying Chemicals Not Requiring Classification and Labelling for Eye Irritation or Serious Eye Damage)
Version / remarks:
EpiOcular MTT Viability Assay
Draize correlation
Deviations:
no
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Reaction mass of glycerol and N-[3-(dimethylamino)propyl]stearamide and N-[3-(dimethylamino)propyl]docosanamide
Molecular formula:
C21 H50 N O C23 H54 N O C25 H58 N O C27 H62 N O
IUPAC Name:
Reaction mass of glycerol and N-[3-(dimethylamino)propyl]stearamide and N-[3-(dimethylamino)propyl]docosanamide
Test material form:
solid: flakes

Test animals / tissue source

Species:
human
Details on test animals or tissues and environmental conditions:
MatTek EpiOcular tissues Lot 8704 kit Q received on 10/03/06. Following a one hour equilibration of the tissues in the incubator (37C, 5% CO2) in assay media supplied by MaTek, the assay medium was replaced with fresh media and 100 microL of the test substance supplied was applied to the top of each EpiOcular tissues.

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
yes, concurrent positive control
Amount / concentration applied:
100 microL or 100mg
Duration of treatment / exposure:
1, 4, 64, 256 minutes
Duration of post- treatment incubation (in vitro):
see report
Number of animals or in vitro replicates:
Each treatment was conducted in duplicate
Details on study design:
see report

Results and discussion

In vitro

Results
Irritation parameter:
other: viability tissue %
Run / experiment:
ET50 > (256min)
Value:
80.6
Vehicle controls validity:
not applicable
Negative controls validity:
valid
Positive controls validity:
valid
Remarks on result:
no indication of irritation

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
ET50 > 256 min. According to EpiOcular MTT Viability Assay, the substance is non-irritating, minimal.
Executive summary:

the substance is non-irritating, minimal according to EpiOcular MTT Viability Assay