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EC number: 416-900-5 | CAS number: 79723-02-7 TMAP
- 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: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- June-July 1987
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The study has been performed according to OECD and/or EC guidelines and according to GLP principles. Test substance only indicated by abbreviation; no information on test substance purity.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 987
- Report date:
- 1987
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- Version / remarks:
- 1981
- Deviations:
- yes
- Remarks:
- no information on test substance purity
- GLP compliance:
- yes
- Test type:
- standard acute method
- Limit test:
- no
Test material
- Reference substance name:
- Tetramethylammonium hydrogen phthalate
- EC Number:
- 416-900-5
- EC Name:
- Tetramethylammonium hydrogen phthalate
- Cas Number:
- 79723-02-7
- Molecular formula:
- C12H17NO4
- IUPAC Name:
- tetramethylazanium 2-carboxybenzoate
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): TMAP
- Physical state: white crystalline powder
- Storage condition of test material: room temperature in sealed container
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Interfauna (UK) Limited, Wyton, Huntingdon, Cambridgeshire
- Age at study initiation: approximately five to eight weeks old
- Weight at study initiation: males 134 - 159g; females 130 - 159g
- Fasting period before study: overnight
- Housing: in groups of up to five by sex in solid-floor polypropylene cages with sawdust bedding
- Diet: free access to food (Rat and Mouse Expanded Diet No. 1, Special Diet Services Limited, Witham, Essex, U.K.)
- Water: free access to mains drinking water
- Acclimation period: at least five days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 - 23
- Humidity (%): 60 - 70
- Air changes (per hr): approximately 15
- Photoperiod (hrs dark / hrs light): 12/12
IN-LIFE DATES: From 12 June 1987 to 17 July 1987
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Remarks:
- distilled
- Details on oral exposure:
- MAXIMUM DOSE VOLUME APPLIED: 10 mL/kg
- Doses:
- 50, 85, 146 and 250 mg/kg bw
- 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: observations 1 and 4 hours after dosing and subsequently once daily for 14 days. Individual bodyweights were recorded on the day of treatment (day 0), days 7 and 14, and at death.
- Necropsy of survivors performed: yes
Concentration range in the main study is based on a range-finding study.
Results and discussion
Effect levels
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- 100 mg/kg bw
- Based on:
- test mat.
- 95% CL:
- 81 - 124
- Remarks on result:
- other: Lowest LD50 compared to total or males separately.
- Mortality:
- Male animals:
* 50 mg/kg bw: 0 of 5
* 85 mg/kg bw: 1 of 5
* 146 mg/kg bw: 4 of 5
* 250 mg/kg bw: 5 of 5
Female animals:
* 50 mg/kg bw: 0 of 5
* 85 mg/kg bw: 1 of 5
* 146 mg/kg bw: 5 of 5
* 250 mg/kg bw: 5 of 5
Majority of deaths within 1h of treatment. All other deaths within 4h of treatment. - Clinical signs:
- other: Signs of toxicity related to dose levels: Surviving animals from all dose groups showed hunched posture, pilo-erection, decreased respiratory rate and lethargy 1 and 4 hours after dosing. Ptosis was also commonly noted in animals treated with 85 mg/kg bw
- Gross pathology:
- Effects on organs:
One surviving female treated with 85 mg/kg bw showed abnormally red lungs with small and pale liver and spleen and pale kidneys. Ulceration of the gastric mucosa was also noted.
All other surviving animals showed no uncommonly observed abnormalities at necropsy at the end of the study. - Other findings:
- Common abnormalities noted at necropsy of decedents were abnormally red lungs, dark livers, kidneys and spleen and sloughing of the gastric mucosa. Congestion of the small intestines was also occasionally noted.
Any other information on results incl. tables
The acute oral median lethal doses (LD50) and 95% confidence limits of TMAP in the rat were calculated by the method of Weil to be:
* 105 (88 - 126) mg/kg bw (all animals)
* 111 (82 - 151) mg/kg bw (males only)
* 100 (81 - 124) mg/kg bw (females only)
Applicant's summary and conclusion
- Interpretation of results:
- other: cat. 3
- Remarks:
- Criteria used for interpretation of results: EU
- Conclusions:
- Based on an acute oral toxicity test with TMAP, following OECD guideline 401, the acute oral LD50 of TMAP in the rat was calculated to be 100 (81-124) mg/kg bodyweight.
- Executive summary:
In an acute oral toxicity study in rat performed according to OECD guideline 401, TMAP was tested in 5 rats/sex at dose levels of 50, 85, 146 and 250 mg/kg bw. The majority of deaths occurred within one hour of treatment or were noted four hours after treatment. Principal signs of toxicity, noted shortly after dosing, were hunched posture, pilo-erection, lethargy and decreased respiratory rate. Ptosis was also noted in animals treated with 85 mg/kg and above. Isolated or occasional signs of ataxia or clonic convulsions were also noted. All surviving animals were normal one to two days after dosing and showed expected gains in bodyweight over the study period. One surviving female treated with 85 mg/kg also showed abnormally red lungs, with small and pale liver and spleen and pale kidneys with ulceration of the gastric mucosa. All other surviving animals showed no abnormalities. The acute oral LD50 of the test material was calculated to be 100 (81-124) mg/kg bodyweight.
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