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EC number: 202-908-4 | CAS number: 101-02-0
Acute Toxicity: inhalation
Administrative data
- Endpoint:
- acute toxicity: inhalation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 980
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 403 (Acute Inhalation Toxicity)
- GLP compliance:
- yes
- Test type:
- standard acute method
- Limit test:
- yes
Test material
- Reference substance name:
- Triphenyl phosphate
- EC Number:
- 204-112-2
- EC Name:
- Triphenyl phosphate
- Cas Number:
- 115-86-6
- Molecular formula:
- C18-H15-O4-P
- IUPAC Name:
- triphenyl phosphate
- Reference substance name:
- Triphenyl phosphite
- EC Number:
- 202-908-4
- EC Name:
- Triphenyl phosphite
- Cas Number:
- 101-02-0
- Molecular formula:
- C18H15O3P
- IUPAC Name:
- triphenyl phosphite
- Details on test material:
- - Name of test material (as cited in study report): Triphenyl phosphite
- Commercial purity: > 97% (Phosphorus content = 10.0 %)
- Lot/batch No.: TPPx-Z18-04080A
- Supplier: Borg Warner Company, Parkersburg, WV
Constituent 1
Constituent 2
Test animals
- Species:
- rat
- Strain:
- other: Sherman-Wistar
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Housing: The animals were housed and maintained in compliance with the Animal Welfare Act (Pub. L-94-279) 9 CFR, Part 3.
Administration / exposure
- Route of administration:
- inhalation: aerosol
- Type of inhalation exposure:
- not specified
- Vehicle:
- air
- Details on inhalation exposure:
- GENERATION OF TEST ATMOSPHERE / CHAMBER DESCRIPTION
- Exposure apparatus: plexiglass
- Exposure chamber volume: 260 L
- Source and rate of air: 20 L/min
- System of generating particulates/aerosols: six-jet Collision nebulizer (BGI Incorporated, Waltham, MA). The air was passed through a desicant prior to being passed through the test material.
- Method of particle size determination: Andersen Sampler cascade impactor. The sampler was run for 5 minutes midway through the exposure. During sampling, air from the breathing zone of the animals was drawn through the cascade impactor at the rate of 1 ft3/min. The amount of aerosol impacting on each plate of the Andersen Sampler was determined by differential weighing. From these values the mass median diameter of the aerosol was calculated to be 0.48 microns and the concentration was calculated to be 0.10 mg/L.
- Temperature, humidity, pressure in air chamber: 72 degree F
The average concentration of the aerosol over the one-hour exposure period was calculated to be 12.6 mg/L by differential weighing of the flask from which the aerosol was generated. - Analytical verification of test atmosphere concentrations:
- not specified
- Duration of exposure:
- 1 h
- Concentrations:
- Data needed for CSR report.
The sample was dosed as supplied (described as a colorless to straw-colored liquid). - No. of animals per sex per dose:
- 5
- Control animals:
- other: Data used for CSR
- Details on study design:
- - Duration of observation period following administration: 21 days
- Frequency of observations and weighing: observed daily for a 21-day period for signs of toxicity and mortality.
Results and discussion
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LC50
- Effect level:
- > 6.7 mg/L air
- Mortality:
- No animals died during the experiment.
- Clinical signs:
- other: No adverse effects were observed during the one-hour exposure period. No untoward signs and symptoms were observed during the 21-day post exposure observation period.
- Gross pathology:
- Gross pathological examination revealed no remarkable findings.
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- LC50 (aerosol) was >6.7 mg/L. TPP is not acutely toxic via the inhalation route and not classifiable.
- Executive summary:
LC50 (aerosol) was >6.7 mg/L. TPP is not acutely toxic via the inhalation route and not classifiable.
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