Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 700-810-0 | CAS number: 58190-62-8
- 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
In the skin irritation study, no irritation or corrosion were observed. In the eye irritation study, no corrosion was observed but ocular, iridial, and/or conjunctival irritation was observed in all 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:
- weight of evidence
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: OECD guideline study conducted under GLP
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2500 (Acute Dermal Irritation)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- Animals for this study were selected from a stock supply of healthy adult rabbits of the New Zealand White strain. They were in the weight range of 2.69 to 3.62 kg and 30 or 35 weeks of age, prior to treatment (Day 1). All rabbits were acclimatised to the experimental environment for a period of at least 12 or 13 weeks prior to the start of the study.
The rabbits were housed individually in plastic cages with perforated floors. Each rabbit was offered 125 g of a standard laboratory rabbit diet per day; drinking water was provided ad libitum. The batch of diet used for the study was analysed for nutrients, possible contaminants and micro-organisms likely to be present in the diet and which, if in excess of specified amounts, might have an undesirable effect on the test system. The animals were
given a dietary supplement of hay.
During the acclimatisation and study period the animals were given small soft white untreated wood blocks for environmental enrichment.
Results of routine physical and chemical examination of drinking water, as conducted by the supplier are made available to Huntingdon Life Sciences Limited.
Animal room environmental controls were set to maintain temperature within the range 16 to 20°C, and relative humidity within 40 to 70%. These environmental parameters were recorded and the permanent record archived with other departmental raw data. Lighting was controlled by means of a time switch to give 12 hours of artificial light (06:00 to 18:00 GMT) in each 24 hour period. - Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- 0.5 mL as supplied
- Duration of treatment / exposure:
- 4 hours
- Observation period:
- 7 or 9 days
- Number of animals:
- 3 rabbits
- Details on study design:
- On the day before application of the test substance, hair was removed with clippers from the dorso-lumbar region of each rabbit exposing an appropriate sized area of skin.
Approximately 0.5 mL of the test substance was applied under a 2-ply 25 mm x 25 mm porous gauze pad secured with ‘blenderm’ surgical tape to intact skin sites on three animals. An additional site was similarly treated with the exception of test substance and acted as a control.
A single animal (number 4) received three exposures of three minutes, one or four hour’s duration in a step-wise manner and acted as a preliminary screen. In the absence of a severe effect on removal of the dressings the next exposure was initiated.
For exposures of one hour or more each treatment site was covered with cotton wool and "Tubigrip" elasticated bandage dressing for the duration of the exposure period. The animals were returned to their cages immediately after treatment. At the end of the exposure period the semi-occlusive dressing and gauze pad were removed and the treatment site was washed with lukewarm water (30-40°C) to remove any residual test substance. The treated area was blotted dry with absorbent paper. - Irritation parameter:
- erythema score
- Basis:
- animal #4
- Time point:
- other: 24, 48, 72 hrs
- Score:
- 1
- Max. score:
- 1
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #5
- Time point:
- other: 24, 48, 72 hrs
- Score:
- 1
- Max. score:
- 1
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #6
- Time point:
- other: 24, 48, 72 hrs
- Score:
- 1
- Max. score:
- 1
- Reversibility:
- fully reversible
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: OECD GHS
- Conclusions:
- According to the criteria of the Globally Harmonised System and European Commission regulation 1272/2008 OS 1600 did not require any classification and labelling regarding skin irritation or corrosion.
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: OECD guideline study conducted under GLP
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2400 (Acute Eye Irritation)
- GLP compliance:
- yes (incl. QA statement)
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Harlan, France
- Age at study initiation: at least 6 weeks
- Weight at study initiation: at least 1.0 kg
- Housing: individually
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 - 21.4
- Humidity (%): 42 - 70
- Air changes (per hr): 16
- Photoperiod (hrs dark / hrs light):12 hrs - Vehicle:
- unchanged (no vehicle)
- Controls:
- other: one eye was untreated and served as the control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied: 0.1 ml
- Concentration : 100% - Duration of treatment / exposure:
- lids held together for 1 sec
- Observation period (in vivo):
- 24, 48, and 72 hour, 7 days, and 14 days after exposure
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Washing (if done): not done
SCORING SYSTEM: Draize
TOOL USED TO ASSESS SCORE: fluorescein - Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Time point:
- other: 24, 47, and 72 hours
- Score:
- 0.67
- Max. score:
- 1
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- iris score
- Basis:
- mean
- Time point:
- other: 24, 48, and 72 hour
- Score:
- 0.5
- Max. score:
- 0.7
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- mean
- Time point:
- other: 24, 48, and 72 hr
- Score:
- 1.67
- Max. score:
- 2.3
- Reversibility:
- fully reversible within: 14 days
- Irritation parameter:
- conjunctivae score
- Remarks:
- chemosis
- Basis:
- mean
- Time point:
- other: 24, 48, and 72 hr
- Score:
- ca. 1
- Max. score:
- 1.3
- Reversibility:
- fully reversible within: 7 days
- Other effects:
- No clinical signs of toxicity noted
- Interpretation of results:
- irritating
- Remarks:
- Migrated information Category A2 Criteria used for interpretation of results: OECD GHS
- Conclusions:
- MPKO is irritating to rabbit eyes
Reference
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (irritating)
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Data for OS-1600 was used as an analog for OS-2600. Like OS-1600, OS-2600 quickly hydrolyzes releasing the oximes and the silicon moieties which simultaneously cross link to other silicon atoms forming a silicone polymer. The relevant species in the case of both OS-1600 and OS-2600 is 2-PO. In this study, OS-1600 was not irritating to the skin of rabbits. According to the criteria of the Globally Harmonised System and European Commission regulation 1272/2008 OS-2600 did not require any classification and labelling regarding skin irritation or corrosion.
Justification for selection of eye irritation endpoint:
Only one study available
Effects on eye irritation: moderately irritating
Justification for classification or non-classification
Based on GHS criteria, OS1600 is category 2.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.