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EC number: 811-522-0 | CAS number: 62880-93-7
- 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
Skin sensitisation
Administrative data
- Endpoint:
- skin sensitisation: in vivo (LLNA)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 25 February, 2015 - 16 March, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and/or EC guidelines and according to GLP principles.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
- Version / remarks:
- (2010)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
- Version / remarks:
- (2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2600 (Skin Sensitisation)
- Version / remarks:
- (2003)
- Deviations:
- no
- GLP compliance:
- yes
- Type of study:
- mouse local lymph node assay (LLNA)
Test material
- Reference substance name:
- sodium 2-methyl-2-{3-[(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)sulfanyl]propanamido}propane-1-sulfonate
- EC Number:
- 811-522-0
- Cas Number:
- 62880-93-7
- Molecular formula:
- C15H17F13NNaO4S2
- IUPAC Name:
- sodium 2-methyl-2-{3-[(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)sulfanyl]propanamido}propane-1-sulfonate
- Test material form:
- other: lumps
- Details on test material:
- - Name of test material (as cited in study report): NS-3000
- Appearance: White to off-white lumps (determined by WIL Research Europe)
- Storage condition of test material: At room temperature desiccated
Constituent 1
In vivo test system
Test animals
- Species:
- mouse
- Strain:
- other: CBA/J
- Sex:
- female
- Details on test animals and environmental conditions:
- TEST ANIMALS
- Source: Janvier, Le Genest-Saint-Isle, France
- Age at study initiation: Young adult animals (approx. 10 weeks old)
- Weight at study initiation: 20 - 23 g
- Housing: Animals were group housed in labeled Makrolon cages.
- Diet: Free access to pelleted rodent diet (SM R/M-Z from SSNIFF® Spezialdiäten GmbH, Soest, Germany).
- Water: Free access to tap water.
- Acclimation period: At least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): set to maintain 18 to 24°C
- Humidity (%): set to maintain 40 to 70%
- Air changes (per hr): at least 10
- Photoperiod (hrs dark / hrs light): 12/12
Study design: in vivo (LLNA)
- Vehicle:
- acetone/olive oil (4:1 v/v)
- Concentration:
- 0, 10, 25 and 50%
- No. of animals per dose:
- 5
- Details on study design:
- The vehicle was selected based on trial formulations performed at NOTOX and on test substance data supplied by the sponsor.
RANGE FINDING TESTS:
Two test substance concentrations were tested; a 25% and 50% concentration. The highest concentration was the maximum concentration as required in the test guidelines (50% for solids).
The test system, procedures and techniques were identical to those used in the main study except that the application method may have been different and that the assessment of lymph node proliferation and necropsy were not performed. Two young adult animals per concentration were selected. Each animal was treated with one concentration on three consecutive days. Animals were group housed in labeled Makrolon cages. Ear thickness measurements were conducted using a digital thickness gauge prior to dosing on Days 1 and 3, and on Day 6. Animals were sacrificed after the final observation.
MAIN STUDY
ANIMAL ASSIGNMENT AND TREATMENT
- Name of test method: Local Lymph Node Assay
- Criteria used to consider a positive response: DPM values are presented for each animal and for each dose group. A Stimulation Index (SI) is calculated for each group using the individual SI values. The individual SI is the ratio of the DPM/animal compared to DPM/vehicle control group. If the results indicate a SI ≥ 3, the test substance may be regarded as a skin sensitizer. Consideration was given to the EC3 value (the estimated test substance concentration that will give a SI =3).
ANIMAL ASSIGNMENT
Three groups of five animals were treated with one test substance concentration per group. One group of five animals was treated with vehicle.
TREATMENT PREPARATION AND ADMINISTRATION:
Test substance preparation: The test substance preparations (w/w) were prepared within 4 hours prior to each dosing. No adjustment was made for specific gravity of the vehicle. Homogeneity was obtained to visually acceptable levels.
Rationale for vehicle: The vehicle was selected on the basis of maximizing the solubility using the test substance data provided by the sponsor and trial preparation results performed at WIL Research Europe. The vehicle was chosen from the vehicles specified in the test guideline.
Induction - Days 1, 2 and 3; Excision of nodes - Day 6; Tissue processing for radioacitivity - Day 6; Radioactivity measurements - Day 7; Performed according to test guidelines.
Observations:
Mortality/Viability: Twice daily.
Body weights: On Day 1 (pre-dose) and Day 6 (prior to necropsy).
Clinical signs: Once daily on Days 1-6 (on Days 1-3 between 3 and 4 hours after dosing).
Irritation: Once daily on Days 1-6 (on Days 1-3 within 1 hour after dosing) according to the numerical scoring system. Furthermore, a description of all other (local) effects was recorded according to guidelines.
Necropsy: No necropsy for gross macroscopic examination was performed according to protocol. - Positive control substance(s):
- hexyl cinnamic aldehyde (CAS No 101-86-0)
- Statistics:
- Not performed.
Results and discussion
- Positive control results:
- The six-month reliability check with Alpha-hexylcinnamicaldehyde indicates that the Local Lymph Node Assay as performed at WIL Research is an appropriate model for testing for contact hypersensitivity. See attached document 'Reliability check'.
In vivo (LLNA)
Resultsopen allclose all
- Parameter:
- SI
- Value:
- 1
- Test group / Remarks:
- Concentration 10%
- Parameter:
- SI
- Value:
- 1.3
- Test group / Remarks:
- Concentration 25%
- Parameter:
- SI
- Value:
- 1
- Test group / Remarks:
- Concentration 50%
- Parameter:
- other: disintegrations per minute (DPM)
- Remarks on result:
- other: Mean DPM/animal values for the experimental groups treated with test substance concentrations 10, 25 and 50% were 655, 835 and 666 DPM, respectively. The mean DPM/animal value for the vehicle control group was 647 DPM.
Any other information on results incl. tables
Results Pre-screen test:
No irritation and no signs of systemic toxicity were observed in any of the animals examined. White staining of test substance remnants on the dorsal surface of the ears of all animals between Days 1 and 3, did not hamper scoring of erythema. Variations in ear thickness during the observation period were less than 25% from Day 1 pre-dose values.
Based on these results, the highest test substance concentration selected for the main study was a 50% concentration.
Other results - main study:
No irritation of the ears was observed in any of the animals examined. White staining of test substance remnants on the dorsal surface of the ears of the experimental animals between Days 1 and 3 did not hamper scoring for erythema.
All auricular lymph nodes of the animals of the experimental and control groups were considered normal in size. No macroscopic abnormalities of the surrounding area were noted for any of the animals.
No mortality occurred and no clinical signs of systemic toxicity were observed in the animals of the main study. Body weights and body weight gain of experimental animals remained in the same range as controls over the study period.
Applicant's summary and conclusion
- Interpretation of results:
- not sensitising
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- In an LLNA skin sensitisation study, performed according to OECD 429 test guideline and GLP principles, NS-3000 was considered not be a skin sensitiser, as the SI appeared not to be ≥ 3 when tested up to and including 50%.
- Executive summary:
NS-3000 was tested in an LLNA skin sensitisation study, performed according to OECD 429 test guideline and GLP principles.
No irritation of the ears was observed in any of the animals examined. White staining of test substance remnants on the dorsal surface of the ears of the experimental animals between Days 1 and 3 did not hamper scoring for erythema.
All auricular lymph nodes of the animals of the experimental and control groups were considered normal in size. No macroscopic abnormalities of the surrounding area were noted for any of the animals.
No mortality occurred and no clinical signs of systemic toxicity were observed in the animals of the main study. Body weights and body weight gain of experimental animals remained in the same range as controls over the study period.
The SI values calculated for the substance concentrations 10, 25 and 50% were 1.0, 1.3 and 1.0, respectively.
Since there was no indication that the test substance elicited a SI ≥ 3 when tested up to and including 50%, NS-3000 was not considered to be a skin sensitizer.
Based on the results of this study, the substance does not need to be classified for skin sensitisation according to Regulation (EC) No 1272/2008 on classification, labelling and packaging.
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