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EC number: 245-728-1 | CAS number: 23552-74-1
- 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
Endpoint summary
Administrative data
Description of key information
No relevant signs of dermal or ocular irritation were observed in rabbits.
Key value for chemical safety assessment
Skin irritation / corrosion
Link to relevant study records
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1988
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study according to guideline and GLP
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- GLP compliance:
- yes (incl. QA statement)
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Kleintierfarm Madoerin AG CH 4414 Fuellinsdorf I Switzerland
- Age at study initiation: 14 - 15 weeks
- Weight at study initiation: 2.4 - 3.0 kg
- Housing:
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libintum
- Acclimation period: Four days under test conditions
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20+/- 3
- Humidity (%): 40-70
- Air changes (per hr): > 10
- Photoperiod (hrs dark / hrs light): 12/12 - Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- other: PEG 400
- Controls:
- not required
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg / site
- Concentration (if solution): moistened with vehicle - Duration of treatment / exposure:
- 4 h
- Observation period:
- 7 days
- Number of animals:
- 3
- Details on study design:
- TEST SITE
- Area of exposure: 100 cm²
- Type of wrap if used: semi-occlusive
REMOVAL OF TEST SUBSTANCE
- Washing (if done): luke- warm water
- Time after start of exposure: 4 h
SCORING SYSTEM: OECD TG 404 (1984) - Irritation parameter:
- overall irritation score
- Basis:
- mean
- Time point:
- other: 72 h
- Score:
- ca. 0.7
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- other: 72 h
- Score:
- 0.4
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: 72 h
- Score:
- 0
- Irritant / corrosive response data:
- The test material showed a primary irritation score of 0.7 when applied to intact rabbit skin.
Local signs (mean 1 hour to 7 day) consisted of grade 0.4 erythema and grade 0.0 edema. They were reversible within 7 days.
No destructions or irreversible alterations of the treated skin were observed. No corrosive effect was evident on the skin. - Other effects:
- In the area of application a blue staining of the treated skin by the test article (blue pigment) was observed.
The body weight gains of all rabbits were similar. No acute toxic symptoms were observed in the animals during the test period, and
no mortality occurred. - Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Executive summary:
TREATMENT
Approximately 24 hours before treatment, the dorsal fur was shaved with an electric clipper, exposing an area of approximately 100 square centimeters (10 cm x 10 cm).
On test day 1, 0.5 g of the test article (The test article was moistened with polyethylene glycol )
w
as applied to the intact skin of the shaved area. It was covered with a 3.0 cm x 3.0 cm patch of surgical gauze. The gauze was covered with a semi-occlusive dressing. The dressing was wrapped around the abdomen and anchored with an elastic bandage. The duration of treatment was 4 hours.Four hours after the application, the dressing was removed and the skin was flushed with 1ukewarm tap water. The skin reaction was assessed according to the OECD Guideline for Testing of Chemicals 404. The skin reaction was assessed at 1, 24, 48 and 72 hours and at 7 days after the removal of the dressing, gauze patch and test article.
IRRITATION / CORROSION
The test material showed a primary irritation score of 0.7 when applied to intact rabbit skin. Local signs (mean;1 hour to 7 day) consisted of grade 0.4 erythema and grade 0.0 edema.
They were reversible until day 7.
No destructions or irreversible alterations of the treated skin were observed. No corrosive effect was evident on the skin.
Other Findings:
No acute toxic symptoms were observed in the animals during the test period, and no mortality occurred.
The body weight gain of all rabbits was similar.
In the area of application a blue staining of the treated skin by pigment or coloring of the test article was observed.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not irritating)
Eye irritation
Link to relevant study records
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1974
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: no GLP; deviations from Guideline
- Qualifier:
- according to guideline
- Guideline:
- other: USA Hazardous Substance Act from Sept. 16, 1964
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- yes
- Remarks:
- 6 animals; rinsing of some eyes after 30 s;
- GLP compliance:
- no
- Remarks:
- pre-dates GLP regulation
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: KFM (CH-4414 FUllinsdorf, Switzerland)
- Age at study initiation: 14 weeks
- Weight at study initiation: 2,5 +/-0,5 kg
- Housing: individually in stainless cages with grid bottom
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 4 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21 +/-2
- Humidity (%): 30 - 70
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12 - Vehicle:
- unchanged (no vehicle)
- Controls:
- no
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 100mg/eye
- both eyes treated - Duration of treatment / exposure:
- right eyes: rinsed with lukewarm water after 30 seconds
left eyes: not limited - Observation period (in vivo):
- 7 days
- Number of animals or in vitro replicates:
- 6
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Washing (if done): right eyes after 30 seconds: warm water
SCORING SYSTEM: Draize
TOOL USED TO ASSESS SCORE: none - Irritation parameter:
- overall irritation score
- Basis:
- mean
- Time point:
- other: 72 h
- Score:
- 2.5
- Max. score:
- 5
- Remarks on result:
- other: Eyes not rinsed
- Irritation parameter:
- overall irritation score
- Basis:
- mean
- Time point:
- other: 72 h
- Score:
- 0.44
- Max. score:
- 0.67
- Remarks on result:
- other: eyes rinsed after 30 seconds
- Irritant / corrosive response data:
- In the unrinsed eye redness of the conjunctiva was observed in 5 of 6 rabbits 24 hours after instillation and was accompanied by lid swelling in 3 animals; swelling has disappeared at 48 hours but two animals still showed conjunctival redness.
A slight impairement of the iris function was reported in two cases after 24 hours and in one case after 48 hours. Whereas all irritation effects had disappeared after 72 hours one case of grade 1 redness was reported in one animal after 7 days which is considered unlikely related to the test article. Cornea was at no time involved in the ocular effects.
In the rinsed eye ocular effects were limited to grade 1 redness of the conjunctiva in single animals: .one at 24h and 72h, two at 48h but three after 7 days (!).
That rinsing did not totally eliminated conjunctiva redness could have been due to the strong hydrophobic properties of the test article which, therefore, would not have been totally washed out from the conjunctival sack during the rinsing procedure. - Other effects:
- none
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- According to irritation scores and to the classification system used the test article has been classified a non eye irritant, although some slight ocular effects were reported in the majority of the animals after 24 hours and in some of them after 48 hours.
Rinsing the eye abundantly with water immediately after contamination reduces notably the development of these slight irritation reactions. - Executive summary:
An eye irritation study was performed in rabbit with the test material. The test article,
a blue powder, was of technical grade purity.
Methodology:
The study was designed and conducted accordance with the method recommended by the USA Hazardous Substance Act from Sept. 16, 1964 in the SANDOZ Ltd., Agrotoxicology Dept. in Basle, Switzerland.
Six healthy young adult New Zealand White rabbits were used. Their eyes were determined to be free of pre-existing ocular abnormalities. 100 mg of neat material were administered directly into the conjunctival sacs of both eyes of each rabbit. After about 30 seconds the right eyes were then rinsed with 20 ml of lukewarm water. The left eyes were not rinsed.
The eyes were examined and scored for irritation according to the method of Draize at 24, 48, 72 hours and after 7 days. The system of classification of the irritation potential was based on the average primary irritation score at 24, 48 and 72 hour readings and using the ETAD classification system.
Results and conclusion
Some ocular effects (mainly slight redness of the conjunctiva) were reported in the majority of the animals 24 hours after instillation and in some of them also after 48 hours when the test eye had not been rinsed after the contamination. Cornea was not involved in the irritation. Average irritation scores were 5.67 (of max. 110) at 24 h, 1.83 at 48 h and zero at 72 h post instillation.
According to the ETAD classification scheeme test article, therefore, is classified as a non eye irritant.
Notes
a) Rinsing the eye abundantly with water immediately after contamination notably reduces the risk for developing slight conjunctiva redness.
b) In the US-EPA classification system the test article will probably be classified as minimally irritating to the eye
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not irritating)
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
No relevant signs of dermal or ocular irritation were observed in rabbits.
Justification for selection of skin irritation / corrosion endpoint:
Study according to guideline and GLP
Justification for selection of eye irritation endpoint:
only 1 study available
Justification for classification or non-classification
As no adverse effects were recorded no classification is warranted.
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