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EC number: 248-258-5 | CAS number: 27138-31-4
- 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: inhalation
Administrative data
- Endpoint:
- acute toxicity: inhalation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Not reported
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The study was not conducted to a specific test guideline, no claim of GLP complaince was included in the test report, and the level of detail provided in the report was lacking for certain aspects or the study, so the study cannot be considered reliable without restrictions. The methodology described does, however, seem essentialy reliable.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 975
- Report date:
- 1975
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Five male and five female rats were exposed to an atmosphere containing the test material for 4 hours. During the exposure period the rats were observed for changes in appearance or behaviour, and after the exposure period they were observed for pharmacodynamic or toxic signs. The rats were observed for 14 days following the exposure period, then any surviving animals were sacrificed.
- GLP compliance:
- no
- Limit test:
- no
Test material
- Reference substance name:
- Benzoflex 9-88
- IUPAC Name:
- Benzoflex 9-88
- Reference substance name:
- Oxydipropyl dibenzoate
- EC Number:
- 248-258-5
- EC Name:
- Oxydipropyl dibenzoate
- Cas Number:
- 27138-31-4
- Molecular formula:
- C20H22O5
- IUPAC Name:
- oxydipropyl dibenzoate
- Details on test material:
- - Name of test material (as cited in study report): Benzoflex 9-88 (Dipropylene glycol dibenzoate DPGDB)
- Physical state: viscous brown liquid
Constituent 1
Constituent 2
Test animals
- Species:
- rat
- Strain:
- other: Spartan
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Age at study initiation: Not reported
- Weight at study initiation: 212 to 235 g
- Housing: Rats were housed in groups of 5 in metal cages above the droppings.
- Diet (e.g. ad libitum): Purina Laboratory Chow was available ad libitum
- Water (e.g. ad libitum): Water was available ad libitum.
ENVIRONMENTAL CONDITIONS
- Temperature (°C): Temperature was controlled (note that the temperature range was not reported)
- Humidity (%): Humidity was controlled (note that the humidity range was not reported)
Administration / exposure
- Route of administration:
- inhalation: aerosol
- Type of inhalation exposure:
- whole body
- Vehicle:
- other: unchanged (no vehicle)
- Details on inhalation exposure:
- GENERATION OF TEST ATMOSPHERE / CHAMBER DESCRIPTION
- Exposure apparatus: Sealed glass chamber, test material addition controlled by a Dual Syringe Feeder.
- Exposure chamber volume: 59.1 L
TEST ATMOSPHERE
- Brief description of analytical method used: None reported - Analytical verification of test atmosphere concentrations:
- not specified
- Duration of exposure:
- 4 h
- Concentrations:
- Approximately 200 mg/L. of DPGDB
- No. of animals per sex per dose:
- 5
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: During the 4 hour exposure to the test compound the rats were observed continuously for changes in behavior and or appearance.
- Necropsy of survivors performed: no
- Other examinations performed: clinical signs
Results and discussion
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LC50
- Effect level:
- > 200 mg/L air
- Exp. duration:
- 4 h
- Remarks on result:
- other: No deaths seen during exposure or observation periods
- Mortality:
- All the rats exposed to DPGDB for the 4-hour exposure duration survived until the end of the observation period.
- Clinical signs:
- other: Signs seen during the 4 hour exposure period included decreased motor activity, eye squint, erythema, clear nasal discharge, salivation, lacrimation, tachypnea and slight dyspnea. In addition, at the termination of the exposure period both ocular and
- Body weight:
- All rats exhibited normal body weight gains during the study period.
- Gross pathology:
- None.
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information According to Directive 67/548/EEC Criteria used for interpretation of results: EU
- Conclusions:
- No deaths were seen in rats exposed to a 200 mg/L atmosphere of DPGDB in air for four hours. On this basis, DPGDB would not be considered a toxic material by the inhalation route of administration.
- Executive summary:
A study was performed to assess the acute inhalation toxicity of the test material DPGDB when administered to rats. The study, conducted in 1975, was not performed according to any specific testing guideline, and not in compliance with GLP.
The acute inhaled toxicity assessment was performed in groups of five female and five male rats, exposed to a whole-body aerosol atmosphere containing approximately 200 mg/L. of DPGDB for four hours, then observed for 14 days post exposure. Clinical signs seen during the 4 hour exposure period included decreased motor activity, eye squint, erythema, clear nasal discharge, salivation, lacrimation, tachypnea and slight dyspnea. In addition, at the termination of the exposure period both ocular and nasal porphyrin discharge, flaccidity and ataxia were observed.
At 24 hours and for the remainder of the 14 day observation period, several rats exhibited flaccidity. Other signs recorded during the study period were; hypersensitivity to touch in two rats at 24 through 72 hours and in one rat at 4 days.
Ataxia was present in one or two rats at 24 through 72 hours and 6, 12, 13 and 14 days. Drying of the corneal surface in one rat at 6, and 7 days; corneal opacity in one to three rats from 7 through 14 days, and chemosis in one or two rats from 9 through 12 days.
Lacrimation in a few rats at 7, 8 and 9 days and clear nasal discharge in a few rats at 9, 10, 11 and 14 days.
None of the rats exposed to the test material died during the course of the observation period. On this basis, DPGDB would not be considered a toxic material by the inhalation route of administration.
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