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EC number: 405-430-6 | CAS number: 65143-89-7
- 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: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1991
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP, guideline study
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- Deviations:
- no
- Remarks:
- Not specified in report.
- Qualifier:
- according to guideline
- Guideline:
- other: Method 83 in Commission Directive 84/449/EEC
- Deviations:
- no
- Remarks:
- Not specified in report.
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes
- Test type:
- standard acute method
- Limit test:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 405-430-6
- EC Name:
- -
- Cas Number:
- 65143-89-7
- Molecular formula:
- UVCB
- IUPAC Name:
- Reaction mass of Benzene sulfonic acid, hexadecyl(sulfophenoxy)-,disodium salt and Benzene sulfonic acid, - oxibis[hexadecyl]-, disodium salt
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Test material: Dowfax 8390
Reference: Lot # 880225
Appearance: white powder
Purity: 91.6%
Source: The Dow Chemical Company
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- Specification
Five male and five female Sprague-Dawley strain rats were supplied by Charles River (UK) Ltd., Manston, Kent, U.K. At the start of the study the males weighed 211 - 239g, and the females 205 - 222g, and were approximately ten to fourteen weeks old. After a minimum acclimatisation period of at least five days the animals were selected at random and given a unique number within the study by indelible ink marking on the tail and a number written on a cage card.
Husbandry
The animals were housed individually in solid-floor polypropylene cages during the 24-hour exposure period. For the remainder of the
study, the animals were housed in groups of five by sex in polypropylene grid-floor cages suspended over trays lined with absorbent
paper. Free access to mains drinking water and food (Rat and Mouse Expanded Diet. No. 1, Special Diet Services Limited, Witham, Essex,
U.K.) was allowed throughout the study.
The animal room was maintained at a temperature of 19 - 25C and relative humidity of 45 - 54%. The rate of air exchange was approximately
15 changes per hour and the lighting was controlled by a time switch to give 12 hours continuous light and 12 hours darkness.
Administration / exposure
- Type of coverage:
- occlusive
- Vehicle:
- unchanged (no vehicle)
- Details on dermal exposure:
- On the day before treatment the back and flanks of each animal were clipped free of hair using vetrinary clippers to expose a skin area of
approximately 5 cm x 4 cm. A group of five male and five female rats were treated with the test material at a dose level of 2000 mg/kg.
The appropriate amount of the undiluted test material, as received, was pre-weighed into a glass vial. The test material was then applied
uniformly to an area of shorn skin (approximating to 10% of the total body surface area) which had previously been moistened with distilled water. A
piece o f aluminium foil measuring 7 cm x 4 cm was placed over the treatment area and occluded with a piece of self-adhesive bandage (HYPERTIE).
The bandage was further secured with a piece of BLENDERM wrapped around each end. The animals were caged individually for the 24-hour exposure period.
Shortly afterr dosing the dressings were examined to ensure that they were securely in place. After the 24-hour contact period the bandage and foil
were carefully removed and the treated skin and surrounding hair wiped with cotton wool moistened with distilled water to remove any residual
test material. The aninals were returned to group housing for the rest of the study. - Duration of exposure:
- 24 h
- Doses:
- 2000 mg/kg
- No. of animals per sex per dose:
- 5/sex/dose
- Control animals:
- no
- Details on study design:
- On the day before treatment the back and flanks of each animal were clipped free of hair using vetrinary clippers to expose a skin area of
approximately 5 cm x 4 cm. A group of five male and five female rats were treated with the test material at a dose level of 2000 mg/kg.
The appropriate amount of the undiluted test material, as received, was pre-weighed into a glass vial. The test material was then applied
uniformly to an area of shorn skin (approximating to 10% of the total body surface area) which had previously been moistened with distilled water. A
piece o f aluminium foil measuring 7 cm x 4 cm was placed over the treatment area and occluded with a piece of self-adhesive bandage (HYPERTIE).
The bandage was further secured with a piece of BLENDERM wrapped around each end. The animals were caged individually for the 24-hour exposure period.
Shortly afterr dosing the dressings were examined to ensure that they were securely in place. After the 24-hour contact period the bandage and foil
were carefully removed and the treated skin and surrounding hair wiped with cotton wool moistened with distilled water to remove any residual
test material. The aninals were returned to group housing for the rest of the study.
Deaths and overt signs of toxicity were recorded 0.5, 1, 2 and 4 hours after dosing and subsequently once daily for 14 days. Individual bodyweights were recorded on the day of treatment (day 0) and on days 7 and 14.
At the end of the study the animals were killed by cervical dislocation and subjected to gross pathological examination. This consisted of an
external examination and opening of the abdominal and thoracic cavities. The appearance of any macroscopic abnormalities was recorded. No tissues were retained. - Statistics:
- None
Results and discussion
- Preliminary study:
- Not applicable
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Mortality:
- There were no deaths.
- Clinical signs:
- other: No signs of systemic toxicity or skin irritation were noted during the study.
- Gross pathology:
- No abnormalities were noted at necropsy.
- Other findings:
- None
Any other information on results incl. tables
None
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: other: EU GHS
- Conclusions:
- The acute dermal median lethal dose (LD50) of the test material, DOWFAX 8390-D, in the Sprague-Dawley strain rat was found to be greater than 2000 mg/kg bodyweight. No risk phrase is required according to EEC labelling regulations.
- Executive summary:
The acute dermal toxicity of a powdered Dowfax 8390 sample was evaluated in rats. The study conformed to OECD Guideline Number 402 and Method 83 in Commission Directive 841449lEEC.
Five male and five female Sprague-Dawley rats were treated with a single, occluded, dermal application of the undiluted test material to the intact skin which was moistened with distilled water. The material was applied at a dose level of 2000 mg/kg body weight to an area of shorn skin which approximated 10% of the total body surface area. Twenty-four hours after application, the dressing and residual test material were removed. The rats were observed for signs of toxicity and death at 0.5, 1, 2 and 4 hours after dosing and subsequently at least once a day for 14 days. Body weights were recorded on the day of treatment and on days 7 and 14. The rats were examined for gross pathologic changes at the termination of the study.
Dermal application of the test material did not result in any deaths, signs of systemic toxicity or skin irritation. No significant effects on body weight were noted during the study and there were no treatment-related post mortem observations at the termination of the study.
The acute dermal median lethal dose (LD50) of DOWFAX 8390 was greater than 2000 mg/kg body weight in the Sprague-Dawley rat. This degree of dermal toxicity does not require classification or labelling according to the criteria of the Commission of the European Communities (Annex VI of Council Directive 671548lEEC).
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