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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: - | 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Acute Toxicity: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- July - September 1961
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Comparable to guideline study with acceptable restrictions.
- Justification for type of information:
- A discussion and report on the read across strategy is given as an attachment in IUCLID Section 13
Cross-reference
- Reason / purpose for cross-reference:
- read-across: supporting information
Reference
- Endpoint:
- acute toxicity: dermal
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- July - September 1961
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Comparable to guideline study with acceptable restrictions.
- Justification for type of information:
- A discussion and report on the read across strategy is given as an attachment in IUCLID Section 13
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 3.16 mL/kg bw
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 200 - 2 500 mg/kg bw
- Remarks on result:
- other: Recalculated values based on the LD50 of 3.16 mL/kg bw; the range of LD50 is due to the range of density 0.71 -0.78 g/cm3.
- Mortality:
- No deaths at any dosage level.
- Clinical signs:
- other: Apart from 3 rabbits (2 of the 100 µL/kg dose group and one of the 3160 µL/kg dose group) which showed diarrhea for 2 to 4 days during the observation period, all animals seemed normal in appearance and behaviour throughout the study.
- Gross pathology:
- At autopsy, the 3 rabbits which showed diarrhea for 2 to 4 days during the observation period, exhibited pathological findings. One animals of the 100 µL/kg dose group showed paleness of the cortical portion of the kidneys. The other animals from the 100 µL/kg dose group showed an excessive amount of clear fluid in the peritoneal cavity and congested, pitted, tough kidneys. The rabbit of the high dose group showed inflammation of the intestines.
- Other findings:
- Dermal effects: Following removal of the binders at the end of the exposure period, the abdomens and binders were dry. At this time, the exposed skin areas of the animals showed a slight degree of erythema. Within an additional one to three days, the erythema had completely subsided in all animals. The low level animals showed no other signs of irritation during the reminder of the observation period. The high level animals showed slight or moderate desquamation during the final few days of the first week and during most of the second week. At termination, however, the exposed skin of the surviving animals was completely free of signs of irritation.
- Interpretation of results:
- other: Not classified
- Remarks:
- Criteria used for interpretation of results: other: CLP
- Conclusions:
- There is no need for classification.
- Executive summary:
This data is being read across from the source study that tested Hydrocarbons, C7-C9, isoalkanes based on analogue read across.
There is no need for classification.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 961
- Report date:
- 1961
Materials and methods
- Principles of method if other than guideline:
- Standard acute method, applying 4 different doses to the clipped, intact abdominal skin
- GLP compliance:
- no
- Test type:
- standard acute method
- Limit test:
- no
Test material
- Reference substance name:
- Hydrocarbons, C7-C9, isoalkanes
- EC Number:
- 921-728-3
- Molecular formula:
- None available - not a single isomer - see remarks
- IUPAC Name:
- Hydrocarbons, C7-C9, isoalkanes
- Details on test material:
- - Name of test material (as cited in study report): MRD-61-34 (ISOPAR E)
- Physical state: colorless liquid
- Substance type: colorless liquid
- Analytical purity:100% pure commercial product
- Impurities (identity and concentrations): free of impurities
- Other: aromatic odor
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- other: albino
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Weight at study initiation: 1.4 - 2.3 kg
- Housing: Throughout the observation period, the rabbits were housed individually in metal cages elevated above the droppings. Purina Rabbit Pellets and water were freely available at all times.
Administration / exposure
- Type of coverage:
- occlusive
- Vehicle:
- unchanged (no vehicle)
- Details on dermal exposure:
- TEST SITE
- Area of exposure: abdominal skin
- Type of wrap if used: dental daming binder; wrapped with gauze and adhesive tape
REMOVAL OF TEST SUBSTANCE
- Washing (if done): with sponge and warm water
- Time after start of exposure: 24 hours - Duration of exposure:
- 24 hours
- Doses:
- 100, 316, 1000, 3160 µL/kg bw
- No. of animals per sex per dose:
- 4
- Control animals:
- yes
- Details on study design:
- - Duration of observation period following administration: 14 days (daily)
- Frequency of observations and weighing: 0, 1, 4, 24 hours
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight,organ weights, histopathology
Results and discussion
Effect levelsopen allclose all
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 3.16 mL/kg bw
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 200 - 2 500 mg/kg bw
- Remarks on result:
- other: Recalculated values based on the LD50 of 3.16 mL/kg bw; the range of LD50 is due to the range of density 0.71 -0.78 g/cm3.
- Mortality:
- No deaths at any dosage level.
- Clinical signs:
- other: Apart from 3 rabbits (2 of the 100 µL/kg dose group and one of the 3160 µL/kg dose group) which showed diarrhea for 2 to 4 days during the observation period, all animals seemed normal in appearance and behaviour throughout the study.
- Gross pathology:
- At autopsy, the 3 rabbits which showed diarrhea for 2 to 4 days during the observation period, exhibited pathological findings. One animals of the 100 µL/kg dose group showed paleness of the cortical portion of the kidneys. The other animals from the 100 µL/kg dose group showed an excessive amount of clear fluid in the peritoneal cavity and congested, pitted, tough kidneys. The rabbit of the high dose group showed inflammation of the intestines.
- Other findings:
- Dermal effects: Following removal of the binders at the end of the exposure period, the abdomens and binders were dry. At this time, the exposed skin areas of the animals showed a slight degree of erythema. Within an additional one to three days, the erythema had completely subsided in all animals. The low level animals showed no other signs of irritation during the reminder of the observation period. The high level animals showed slight or moderate desquamation during the final few days of the first week and during most of the second week. At termination, however, the exposed skin of the surviving animals was completely free of signs of irritation.
Applicant's summary and conclusion
- Interpretation of results:
- other: Not classified
- Remarks:
- Criteria used for interpretation of results: other: CLP
- Conclusions:
- There is no need for classification.
- Executive summary:
There is no need for classification.
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.
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