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EC number: 268-793-8 | CAS number: 68140-41-0
- 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
Key value for chemical safety assessment
Skin sensitisation
Link to relevant study records
- Endpoint:
- skin sensitisation: in vivo (non-LLNA)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 17th May 2017- 16th June 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 406 (Skin Sensitisation)
- Deviations:
- no
- GLP compliance:
- yes
- Type of study:
- Buehler test
- Justification for non-LLNA method:
- LLNA frequently gives false positives for irritating substances therefore Buehler test was used. The testing will also be submitted to other regulatory agencies that do not accept LLNA testing.
- Species:
- guinea pig
- Strain:
- Hartley
- Sex:
- male
- Details on test animals and environmental conditions:
- Prior to use, all animals were acclimated for at least five days. Animals were individually housed
in wire mesh suspension cages. The animals were maintained on a 12-hour cycle light controlled
room, at a temperature of 64° - 79°F and a relative humidity of 30-70%. The animals were
maintained according to the recommendations contained in the National Academy Press 2011:
“Guide for the Care and Use of Laboratory Animals.” The animals were supplied Purina Guinea
Pig Chow and tap water ad libitum during both acclimation and test periods. Tox Monitor
Laboratories has daily access to feed analysis; water analysis from the city of Chicago is on file.
There were no contaminants in either the feed or the water that would be expected to affect the
outcome of this study. - Route:
- epicutaneous, semiocclusive
- Vehicle:
- water
- Remarks:
- Deionised
- Concentration / amount:
- 0.4ml of neat test substance
- Day(s)/duration:
- 6 hourss exposure
- Adequacy of induction:
- highest concentration used causing mild-to-moderate skin irritation and well-tolerated systemically
- No.:
- #20
- Route:
- epicutaneous, semiocclusive
- Vehicle:
- water
- Remarks:
- Deionised
- Concentration / amount:
- 0.4ml of 50% concentrration of test substance.
- Day(s)/duration:
- 6 hours
- Adequacy of challenge:
- highest non-irritant concentration
- No. of animals per dose:
- 20 animals induction and challenge
- Details on study design:
- An irritation screening study was conducted to dertermine the appropriate concentrations to be used for induction and challenge phases. The day prior to test substance exposure, the hair was removed from each of the animal's backs using a small animal clipper. Closed patches were applied to the animals in the following manner. A 0.4 ml quantity of each test preparation was applied directly into a 25 mm Hilltop Chamber®. The animals were held gently, and the chambers were applied as quickly as possible to the clipped left shoulder. The chambers were secured with Micropore tape and further secured with Kendall adhesive tape. Approximately six hours later, the tape and chambers were remove. Based upon the irritation screen results the test substance was dosed as 100% concentration for
the induction phase of the study, and 50% concentration, the highest non-irritating concentration, for the challenge phase of the study.
The induction phase was then conducted to dermally expose the animal to test substance so that if the test substance is a sensitizer, the physiological process required to ultimately allow the generation of an immunological response can be initiated. The left shoulder of each test animal was clipped with a small animal clipper the day before exposure. The animals were held gently and the chambers were applied as previously described under the "Irritation Screening".After the last induction exposure, the animals were left untreated for two weeks (14 days) before primary challenge
The Primary challenge phase was conducted to investigate the elicitation of response to test substance The test animals, which had three previous exposures to the test substance at appropriate intervals, were exposed to the test substance in the challenge phase fourteen days after the last induction exposure. The same exposure procedure as for the "Induction Phase" was used, except the Hilltop Chambers were applied to a skin site that had not been previously exposed. Each animal received a single chamber of the test substance. The day following the primary challenge exposure all animals were scored. - Challenge controls:
- 6 animals were used as negative control and 4 were kept for rechallenge.
- Positive control substance(s):
- yes
- Key result
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- test chemical
- Dose level:
- 50%
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Remarks on result:
- no indication of skin sensitisation
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- test chemical
- Dose level:
- 50%
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Remarks on result:
- no indication of skin sensitisation
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- negative control
- Dose level:
- 50%
- No. with + reactions:
- 0
- Total no. in group:
- 6
- Remarks on result:
- no indication of skin sensitisation
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- negative control
- Dose level:
- 50%
- No. with + reactions:
- 0
- Total no. in group:
- 6
- Remarks on result:
- no indication of skin sensitisation
- Group:
- positive control
- Remarks on result:
- not measured/tested
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Following primary challenge of test substance, at 50% concentration, the incidence of grade 1 response or greater in the test group (0 of 20) was compared to that of the naive control group (0 of 6). The incidence and severity of these responses were not significantly greater than those produced by the naive control group indicating that sensitization had not been induced. Therefore, in accordance with the CLP guidance, the test substance does not meet the classification criteria for skin sensitization.
- Executive summary:
The test substance was tested for dermal sensitization potential utilizing a Buehler Technique Guinea Pig Sensitization Protocol. The test substance was evaluated for sensitization potential by applying 0.4 ml at a 100% concentration directly into Hilltop Chambers® and applying them to the clipped left shoulder of twenty albino guinea pigs in the following manner: The animals were held gently, and the chambers were applied as quickly as possible to the clipped left shoulder. The chambers were secured with Micropore tape and further secured with Kendall adhesive tape. Approximately six hours later, the tape and chambers were removed. Two additional induction doses were conducted following the same procedure, at weekly intervals.
Two weeks after the final application the animals received a topical primary challenge dose (6 hour contact) of test substance at 50% concentration, on a naive site located on the right shoulder. Animals were scored for irritation at 24 and 48 hours after initiation of the primary challenge application. Ten guinea pigs served as a naive control group, and remained untreated through the induction phase. Six naive control animals received only the primary challenge dose, at a 50% concentration. The four remaining guinea pigs were designated for a re-challenge, if necessary.
Following primary challenge of test substance, at 50% concentration, the incidence of grade 1 response or greater in the test group (0 of 20) was compared to that of the naive control group (0 of 6). The incidence and severity of these responses were not significantly greater than those produced by the naive control group indicating that sensitization had not been induced. Therefore, in accordance with the CLP guidance, the test substance does not meet the classification criteria for skin sensitization.
NOTE: Any of data in this dataset are disseminated by the European Union on a right-to-know basis and this is not a publication in the same sense as a book or an article in a journal. The right of ownership in any part of this information is reserved by the data owner(s). The use of this information for any other, e.g. commercial purpose is strictly reserved to the data owners and those persons or legal entities having paid the respective access fee for the intended purpose.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not sensitising)
Respiratory sensitisation
Endpoint conclusion
- Additional information:
The test substance was tested for dermal sensitization potential utilizing a Buehler Technique Guinea Pig Sensitization Protocol. The test substance was evaluated for sensitization potential by applying 0.4 ml at a 100% concentration directly into Hilltop
Chambers®and applying them to the clipped left shoulder of twenty albino guinea pigs in the following manner: The animals were held gently, and the chambers were applied as quickly as possible to the clipped left shoulder. The chambers were secured with Micropore tape and further secured with Kendall adhesive tape. Approximately six hours later, the tape and chambers were removed. Two additional induction doses were conducted following the same procedure, at weekly intervals.
Two weeks after the final application the animals received a topical primary challenge dose (6 hour contact) of OLE AMP Salt, Lab: 4436 at 50% concentration, on a naive site located on the right shoulder. Animals were scored for irritation at 24 and 48 hours after initiation of the primary challenge application.
Ten guinea pigs served as a naive control group, and remained untreated through the induction phase. Six naive control animals received only the primary challenge dose, at a 50% concentration. The four remaining guinea pigs were designated for a re-challenge, if necessary.
Following primary challenge of OLE AMP Salt, Lab: 4436 at 50% concentration, the incidence of grade 1 response or greater in the test group (0 of 20) was compared to that of the naive control group (0 of 6). The incidence and severity of these responses were not significantly greater than tghose produced by the naive control group indicating that sensitization had not been induced.
Justification for classification or non-classification
Following primary challenge of test substance, at 50% concentration, the incidence of grade 1 response or greater in the test group (0 of 20) was compared to that of the naive control group (0 of 6). The incidence and severity of these responses were not significantly greater than those produced by the naive control group indicating that sensitization had not been induced. Therefore, in accordance with the CLP guidance, the test substance does not meet the classification criteria for skin sensitization.
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