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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study with GLP, however no data pertaining to individual Draize score are available (Documentation insufficient for assessment)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
GLP compliance:
yes
Remarks:
(Hoechst AG, Toxicology and Pathology)

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3,5-trioxane
EC Number:
203-812-5
EC Name:
1,3,5-trioxane
Cas Number:
110-88-3
Molecular formula:
C3H6O3
IUPAC Name:
1,3,5-trioxane
Details on test material:
- Name of test material (as cited in study report): Trioxane
- Physical state: crystals
- Analytical purity: 99.1%
- Impurities (identity and concentrations): ca. 0.1% Triethanolamine, ca. 0.8% water
- Storage condition of test material: 4 °C in dark

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: HOECHST AG, Kastengrund
- Age at study initiation: ca. 3-5 months
- Weight at study initiation: 2.2-2.5 kg
- Diet (e.g. ad libitum): Altromin 2123 (ca. 15 g daily)
- Water (e.g. ad libitum): deionised water


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20±3
- Humidity (%): 50±20
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
physiological saline
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg (0.2 ml of physiol. saline was used to make paste)
Duration of treatment / exposure:
4 h
Observation period:
30-60 min, 24, 48, and 72 h after removal of test substance
Number of animals:
3
Details on study design:
TEST SITE
- Area of exposure: 2.5 x 2.5 cm
- dorsal area of trunk was clipped 24h before application of test substance

REMOVAL OF TEST SUBSTANCE
- Washing (if done): yes with luke warm water
- Time after start of exposure: 4 h


Results and discussion

Any other information on results incl. tables

No irritation responses were observed, however no data pertaining to individual Draize score are available.

Applicant's summary and conclusion