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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Skin irritation / corrosion

Currently viewing:

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 24 August to 02 September 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study run to a method comparable with current guidelines and to GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
5-bromo-3-[(1R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy]pyridin-2-amine
EC Number:
700-798-7
Cas Number:
877399-00-3
Molecular formula:
C13H10BrCl2FN2O
IUPAC Name:
5-bromo-3-[(1R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy]pyridin-2-amine
Details on test material:
- Purity: 99.7% area (HPLC)
- Batch No.: E010010557

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Charles River France, L'Arbresle Cedex, France
- Age at study initiation: between 10-20 weeks old
- Weight at study initiation: 2-4 kg
- Housing: housed in labeled cages with perforated floors and shelters
- Diet (e.g. ad libitum): Pelleted diet approximately 100 grams per day, Hay was provided at least three times a week.
- Water (e.g. ad libitum): Free access to tap water
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21.0 ± 3.0ºC (actual range: 19.0-19.9ºC)
- Humidity (%): 40-70% (actual range: 49 - 87%)
- Air changes (per hr): approximately 15 air changes per hour
- Photoperiod (hrs dark / hrs light): 12 hours artificial fluorescent light and 12 hours darkness per day

IN-LIFE DATES: From: 2010-08-24 To: 2010-09-02

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 grams
- Concentration (if solution):

VEHICLE
- Amount(s) applied (volume or weight with unit): 0.2 mL
- Concentration (if solution):
- Lot/batch no. (if required):
- Purity:
Duration of treatment / exposure:
4 hours
Observation period:
72 hours
Number of animals:
3 males
Details on study design:
TEST SITE
- Area of exposure: approximately 150 square centimeters (10x15 cm)
- % coverage:
- Type of wrap if used: Micropore tape

REMOVAL OF TEST SUBSTANCE
- Washing (if done): tap water
- Time after start of exposure: 4 hours

SCORING SYSTEM: numerical scoring system

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: Mean of 24, 48 and 72 hours
Score:
0
Max. score:
0
Remarks on result:
other: The exposure period is 4 hours.
Irritation parameter:
edema score
Basis:
mean
Time point:
other: Mean of 24, 48 and 72 hours
Score:
0
Max. score:
0
Remarks on result:
other: The exposure period is 4 hours.
Irritant / corrosive response data:
No skin irritation was caused by 4 hours exposure to the test substance.

Other effects:
No staining of the treated skin by the test substance was observed and no test substance remnants were seen.

Any other information on results incl. tables

No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred.

Animal

476

479

480

Time after exposure

Erythema

(0-4)

Oedema

(0-4)

Erythema

(0-4)

Oedema

(0-4)

Erythema

(0-4)

Oedema

(0-4)

1 hour

0

0

0

0

0

0

24 hours

0

0

0

0

0

0

48 hours

0

0

0

0

0

0

72 hours

0

0

0

0

0

0

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
No skin irritation was caused by 4 hours exposure to the test substance.