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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 438 (Isolated Chicken Eye Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU method B.48 (Isolated chicken eye test method for identifying occular corrosives and severe irritants)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
Caramel (color)
EC Number:
232-435-9
EC Name:
Caramel (color)
Cas Number:
8028-89-5
Molecular formula:
C6H12OH
IUPAC Name:
Caramel

Test animals / tissue source

Species:
chicken
Details on test animals or tissues and environmental conditions:
The eyes collected from chickens obtained from a slaughterhouse where they are killed for human consumption have been used for this assay. The age and weight of the chickens used in this test method are that of spring chickens traditionally processed by a poultry slaughterhouse (i.e., approximately 7 weeks old, 1.5 - 2.5 kg). Heads have been removed immediately after sedation of the chickens by electric shock, and incision of the neck for bleeding. Because eyes were dissected in the laboratory, the intact heads were transported from the slaughterhouse at ambient temperature in plastic boxes humidified with towels moistened with physiological saline. The eyes were thereafter enucleated.

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent positive control
yes, concurrent negative control
Amount / concentration applied:
30 μL of the test item was applied.
Duration of treatment / exposure:
The test item was applied for 10 seconds.
Number of animals or in vitro replicates:
3 enucleated chicken eyes

Results and discussion

In vitro

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Run / experiment:
mean
Value:
ca. 0.5
Negative controls validity:
valid
Positive controls validity:
valid
Irritation parameter:
fluorescein retention score
Run / experiment:
mean
Value:
ca. 1
Negative controls validity:
valid
Positive controls validity:
valid
Irritation parameter:
percent corneal swelling
Run / experiment:
mean
Value:
ca. 2
Negative controls validity:
valid
Positive controls validity:
valid
Other effects / acceptance of results:
The combination of the three endpoints for the positive control, 5% Benzalkonium chloride, was 3 x IV. Therefore, the positive control is classified as “Corrosive/Severe Irritant”, as expected.
The combination of the three endpoints for the negative control, physiological saline, was 3 x I. Therefore, the negative control is classified as “No Category”, as expected.

Any other information on results incl. tables

The ocular reactions observed in eyes treated with the test item were:

- maximal mean score of corneal opacity: 0.5, corresponding to ICE class I;

- mean score of fluorescein retention: 1.0, corresponding to ICE class II;

- maximal mean corneal swelling: 2%, corresponding to ICE class I.

The combination of the three endpoints for the test CARAMEL COLOUR E150c was 2 x I, 1 x II.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In accordance with the Regulation (EC) No. 1272/2008, the results obtained under these experimental conditions enable to conclude that the test item CARAMEL COLOUR E150c does not require classification for eye irritation and serious eye damage as defined by the UN GHS (No Category).
No signal word and hazard statement are required.