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EC number: 217-370-6 | CAS number: 1825-62-3
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 - 17 May 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Version / remarks:
- adopted July 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Freie und Hansestadt Hamburg, Behörde für Arbeit, Gesundheit uns Soziales, Germany
Test material
- Reference substance name:
- Ethoxytrimethylsilane
- EC Number:
- 217-370-6
- EC Name:
- Ethoxytrimethylsilane
- Cas Number:
- 1825-62-3
- Molecular formula:
- C5H14OSi
- IUPAC Name:
- ethoxytrimethylsilane
- Details on test material:
- - Name of test material (as cited in study report): Silan M3-Ethoxy
- Physical state: colourless liquid
- Storage condition of test material: cool, dark, dry
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- Himalayan
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: LPT, Laboratory of Pharmacology and Toxicology KG, Loehndorf, Germany
- Age at study initiation: approximately 4.5 and 5.5 months
- Weight at study initiation: 2.1-2.3 kg
- Fasting period before study: no
- Housing: Single housing before and after the exposure period. During exposure the animals were kept singly in restrainers, which allowed free movement of the head but prevented a complete body turn.
- Diet: ssniff K-H (ssniff Spezialdiäten GmbH, Soest, Germany), ad libitum
- Water: tap water, ad libitum
- Acclimation period: at least 20 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20±3
- Humidity (%): 55±15
- Photoperiod (hrs dark / hrs light): 12/12
IN-LIFE DATES: From: 17 June 2002 To: 22 Aug 2002
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: untreated skin site served as control
- Amount / concentration applied:
- TEST MATERIAL
- Amount applied: 0.5 mL - Duration of treatment / exposure:
- 4 h
- Observation period:
- 72 h
Reading time points: 24, 48 and 72 h - Number of animals:
- 3 males
- Details on study design:
- TEST SITE
- Area of exposure: approximately 6 cm²
- Type of wrap if used: Test site covered with a gauze patch, which was held in contact to the skin by means of a semi-occlusive dressing (non-irritating tape).
REMOVAL OF TEST SUBSTANCE
No residual test substance was removed.
SCORING SYSTEM: Draize scoring system
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Remarks:
- out of all 3 animals
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Irritation parameter:
- edema score
- Basis:
- mean
- Remarks:
- out of all 3 animals
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: not applicable
- Irritant / corrosive response data:
- Erythema grade 1 (3/3 animals) were observed 60 min and 24 h after patch removal. Erythema reactions were fully reversible within 48 h. No oedema reactions were observed in any animal. No other findings were observed.
Any other information on results incl. tables
Table 1: Individual results of the skin irritation test.
Rabbit No. |
1 |
2 |
3 |
|||
Observation time |
Erythema |
Edema |
Erythema |
Edema |
Erythema |
Edema |
1 h |
1 |
0 |
1 |
0 |
1 |
0 |
24 h |
1 |
0 |
1 |
0 |
1 |
0 |
48 h |
0 |
0 |
0 |
0 |
0 |
0 |
72 h |
0 |
0 |
0 |
0 |
0 |
0 |
Mean value |
0.33 |
0 |
0.33 |
0 |
0.33 |
0 |
24 + 48 + 72 h |
Applicant's summary and conclusion
- Interpretation of results:
- other: CLP/EU GHS criteria are not met, no classification required according to Regulations (EC) No 1272/2008.
- Conclusions:
- In a skin irritation study with ethoxy(trimethyl)silane (according to OECD 404, GLP compliant) the substance was found to be not irritating. Treatment of 3 male Himalayan rabbits under semi-occlusive conditions with 0.5 mL undiluted test substance only provoked slight erythema reactions being fully reversible within 48 h. Mean erythema and oedema scores over 24, 48, and 72 h were 0.33 and 0, respectively.
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