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EC number: 481-870-2 | CAS number: -
- 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
Acute Toxicity: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- The study was performed between 15 January 2008 and 29 January 2008.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted to GLP and in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do no effect the quality of the relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- UK GLP standards (Schedule 1, Good Laboratory Practice Regulations 1999 (SI 1999/3106 as amended by SI 2004/0994)).
- Test type:
- standard acute method
- Limit test:
- yes
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River (UK) Ltd, Margate, Kent, UK
- Age at study initiation: 8 to 12 weeks
- Weight at study initiation: At least 200g
- Fasting period before study: None.
- Housing: The animals were housed in suspended solid floor polypropylene cages furnished with woodflakes. The animals were housed individually during the 24-hour exposure period and in groups of five, by sex, for the remainder of the study
- Diet (e.g. ad libitum): Free access to food (Certified Rat and Mouse Diet) was allowed throughout the study
- Water (e.g. ad libitum):. Free access to mains drinking water was allowed throughout the study
- Acclimation period: At least 5 days.
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 to 25°C
- Humidity (%): 30 to 70%
- Air changes (per hr): at least fifteen changes per hour
- Photoperiod (hrs dark / hrs light): the lighting was controlled by a time switch to give twelve hours continuous light (06:00 to 18:00) and twelve hours darkness.
IN-LIFE DATES: From: Day 1 To: Day 14
Administration / exposure
- Type of coverage:
- semiocclusive
- Vehicle:
- arachis oil
- Details on dermal exposure:
- TEST SITE
- Area of exposure: On the day before treatment the back and flanks of each animal were clipped free of hair.
- % coverage: approximately 10% of the total body surface area.
- Type of wrap if used: A piece of surgical gauze was placed over the treatment area and semi-occluded with a piece of self adhesive bandage.
REMOVAL OF TEST SUBSTANCE
- Washing (if done): The appropriate amount of test material, moistened with arachis oil BP, was applied as evenly as possible to an area of shorn skin (approximately 10% of the total body surface area). A piece of surgical gauze was placed over the treatment area and semi-occluded with a piece of self adhesive bandage.
- Time after start of exposure: 24 hours.
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): dose level of 2000 mg/kg bodyweight.
- Concentration (if solution): Not stated.
- Constant volume or concentration used: yes
- For solids, paste formed: No
VEHICLE
- Amount(s) applied (volume or weight with unit): Test material was moistened with arachis oil BP
- Concentration (if solution): Not applicable.
- Lot/batch no. (if required): Not stated.
- Purity: Not stated. - Duration of exposure:
- 24 hours
- Doses:
- 2000 mg/kg
- No. of animals per sex per dose:
- 5 males and 5 females
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: The animals were observed for deaths or overt signs of toxicity ½, 1, 2 and 4 hours after dosing and subsequently once daily for fourteen days. Individual bodyweights were recorded prior to application of the test material on Day 0 and on Days 7 and 14.
- Necropsy of survivors performed: yes
- Other examinations performed: After removal of the dressings and subsequently once daily for fourteen days, the test sites were examined for evidence of primary irritation and scored according to the Draize scale (see below). Any other skin reactions, if present were also recorded. - Statistics:
- Data evaluations included the relationship, if any, between the exposure of the animal to the test material and the incidence and severity of all abnormalities including behavioural and clinical observations, gross lesions, bodyweight changes, mortality and any other toxicological effects.
Using the mortality data obtained, an estimate of the acute dermal median lethal dose (LD50) of the test material was made.
Results and discussion
- Preliminary study:
- Not applicable.
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Remarks on result:
- other: 95% CL not specified.
- Mortality:
- There were no deaths.
- Clinical signs:
- There were no signs of systemic toxicity.
- Body weight:
- All animals showed expected gains in bodyweight over the study period.
- Gross pathology:
- No abnormalities were noted at necropsy.
- Other findings:
- Dermal Reactions:
Red-coloured staining, which prevented evaluation of erythema, was noted at the treatment sites of all animals one and two days after dosing.
Crust formation was noted at the treatment sites of all females three days after dosing, at the treatment sites of two females four days after dosing and persisted at the treatment site of one female five and six days after dosing.
Please refer to Individual dermal reaction tables below.
Any other information on results incl. tables
There were no signs of systemic toxicity noted.
Table2 Individual Dermal Reactions - Males
Dose Level mg/kg |
Animal Number and Sex |
Observation |
Effects Noted After Initiation of Exposure (Days) |
|||||||||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
|||
2000 |
1-0 Male |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
1-1 Male |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
1-2 Male |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
1-3 Male |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
1-4 Male |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0= No reactions
?s= Red-coloured staining prevents evaluation of erythema
Table3 Individual Dermal Reactions - Females
Dose Level mg/kg |
Animal Number and Sex |
Observation |
Effects Noted After Initiation of Exposure (Days) |
|||||||||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
|||
2000 |
2-0 Female |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
Cf |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
2-1 Female |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
Cf |
Cf |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
2-2 Female |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
Cf |
Cf |
Cf |
Cf |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
2-3 Female |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
Cf |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
2-4 Female |
Erythema |
?s |
?s |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||
Other |
0 |
0 |
Cf |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0= No reactions
?s= Red-coloured staining prevents evaluation of erythema
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- The acute dermal median lethal dose (LD50) of the test material in the Sprague‑Dawley CD strain rat was found to be greater than 2000 mg/kg bodyweight.
- Executive summary:
Introduction.
The study was performed to assess the acute dermal toxicity of the test material in the Sprague‑Dawley CD strain rat. The method was designed to meet the requirements of the following:
§ OECD Guidelines for the Testing of Chemicals No. 402 “Acute Dermal Toxicity” (adopted)
§ Method B3 Acute Toxicity (Dermal) of Commission Directive 92/69/EEC
Method.
A group of ten animals (five males and five females) was given a single, 24-hour, semi‑occluded dermal application of the test material to intact skin at a dose level of 2000 mg/kg bodyweight. Clinical signs and bodyweight development were monitored during the study. All animals were subjected to gross necropsy.
Mortality.
There were no deaths.
Clinical Observations.
There were no signs of systemic toxicity.
Dermal Irritation.
Red staining, which precluded evaluation of erythema, was noted at the treatment sites of all animals one and two days after dosing. Crust formation was also noted at the treatment sites of all female animals up to six days after dosing. There were no signs of dermal irritation noted in male animals.
Bodyweight.
All animals showed expected gains in bodyweight over the study period.
Necropsy.
No abnormalities were noted at necropsy.
Conclusion.
The acute dermal median lethal dose (LD50) of the test material in the Sprague‑Dawley CD strain rat was found to be greater than 2000 mg/kg bodyweight.
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