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EC number: 268-610-1 | CAS number: 68131-13-5
- 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 (non-LLNA)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 406 (Skin Sensitisation)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.6 (Skin Sensitisation)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2600 (Skin Sensitisation)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- (Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München, Germany)
- Type of study:
- guinea pig maximisation test
- Justification for non-LLNA method:
- NA-DETA is a surfactant.
Test material
- Reference substance name:
- Naphthenic acids, reaction products with diethylenetriamine
- EC Number:
- 268-610-1
- EC Name:
- Naphthenic acids, reaction products with diethylenetriamine
- Cas Number:
- 68131-13-5
- Molecular formula:
- not applicable
- IUPAC Name:
- Naphthenic acids, reaction products with diethylenetriamine
- Test material form:
- other: liquid
Constituent 1
In vivo test system
Test animals
- Species:
- guinea pig
- Strain:
- Dunkin-Hartley
- Sex:
- female
- Details on test animals and environmental conditions:
- - Semi barrier in an air-conditioned room
- Temperature: 22 +/- 3 °C
- Relative humidity: 55 +/- 10%
- Artificial light, sequence being 12 hours light, 12 hours dark
- Air change: at least 10 x / hour
- Free access to autoclaved hay and to Altromin 3122 maintenance diet for guinea pigs (lot no. 0950), rich in crude fibre
- Free access to tap water (drinking water, municipal residue control, microbiological controls at regular intervals)
- The animals were kept in groups in Terluran - cages on Altromin saw fibre bedding (lot no. 261111)
- Certificates of food, water and bedding are filed at BSL BIOSERVICE
- Adequate acclimatisation period (at least five days) under laboratory conditions
Study design: in vivo (non-LLNA)
Inductionopen allclose all
- Route:
- intradermal and epicutaneous
- Vehicle:
- polyethylene glycol
- Concentration / amount:
- For the intradermal injection (induction - first stage), 1% of the test item was in PEG 400 and physiological saline 0.9% NaCl
For the topical application (induction – second stage), 25% of the test item in vaseline
For the topical application (challenge), 5% of the test item in vaseline
Challengeopen allclose all
- Route:
- epicutaneous, occlusive
- Vehicle:
- polyethylene glycol
- Concentration / amount:
- For the intradermal injection (induction - first stage), 1% of the test item was in PEG 400 and physiological saline 0.9% NaCl
For the topical application (induction – second stage), 25% of the test item in vaseline
For the topical application (challenge), 5% of the test item in vaseline
- No. of animals per dose:
- 10 test animals, 5 control animals and 9 animals for preliminary study
- Details on study design:
- Induction: First Stage, Intradermal Injection
Three pairs of intradermal injections of 0.1 mL volume were given in the shoulder region which was cleared of hair by clipping so that one of each pair lies on each side of the midline.
Test Group: Day 0
Injection 1: a 1:1 mixture (v/v) FCA/physiological saline 0.9% NaCl
Injection 2: a 1% concentration of the test item in PEG 400 physiological saline 0.9% NaCl
Injection 3: a 1% concentration of the test item formulated in a 1:1 mixture (v/v) FCA/physiological saline 0.9% NaCl
Control Group: Day 0
Injection 1: a 1:1 mixture (v/v) FCA/physiological saline 0.9% NaCl
Injection 2: 100% PEG 400 and physiological saline 0.9% NaCl
Injection 3: a 50% (v/v) formulation of 0.9% NaCl in a 1:1 (v/v) mixture FCA/physiological saline 0.9% NaCl
Injections 1 and 2 were given close to each other and nearest to the head, while injection 3 was given toward the caudal part of the test area.
Induction: Second Stage, Topical Application
Test Group and Control Group: Day 6
Approximately twenty-four hours before the topical application the test area was painted with 0.5 g of 10% sodium lauryl sulphate
in vaseline after close clipping in order to create a local irritation.
Test Group: Day 7
The test item was dissolved in vaseline at a concentration of 25%. A patch was fully loaded with 0.5 g of the
prepared test item. Then it was applied to the test area and held in contact with the help of an occlusive dressing for 48 hours.
Control Group: Day 7
A patch was fully loaded with 0.5 g of vaseline. Then it was applied to the test area and held in contact with
the help of an occlusive dressing for 48 hours. - Challenge controls:
- The flanks of treated and control animals were cleared of hair by close-clipping.
Test Group and Control Group: Day 20
The test item was suspended in vaselinel at a concentration of 5 %. A patch, loaded with 0.5 g
of the prepared test item was applied to the left flank of the animals and a patch loaded with 0.5 g of the vehicle to the right flank
(intraspecific control). The patches were held in contact with the help of an occlusive dressing for 24 hours.
The application area was not rinsed.
Observation
Test Group and Control Group
Approximately 20 hours after removing the patch, the challenge area was cleared of hair by the use of a depilatory cream.
Approximately 24 and 48 hours after removing the patch the skin reaction was observed and recorded according to the grades shown below.
Additionally all animals were observed for signs of toxicity at least once daily during the test period. - Positive control substance(s):
- not required
- Remarks:
- performed periodically every 6 months
Results and discussion
- Positive control results:
- The recent reliability check was performed in February 2011. The raw data of this study are kept in the BSL archives (BSL Project ID 120793).
The reliability checks are audited by the QA-unit periodically.
Positive-control substance: mercaptobenzothiazole, purity > 98%,
Fluka Chemica, Lot No. 41107195, expiry date: 20/01/2014
Concentrations: 2% induction I phase (in cottonseed oil)
25% induction II phase (in vaseline)
15% challenge (in Vaseline)
The sensitisation rate after application of the positive-control substance mercaptobenzothiazole (15% in vaseline)
was 90%, confirming the reliability of the test system.
In vivo (non-LLNA)
Resultsopen allclose all
- Key result
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- test chemical
- Dose level:
- 1% Intradermal Induction; 25% Topical Induction; 5% Challenge
- No. with + reactions:
- 10
- Total no. in group:
- 10
- Key result
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- test chemical
- Dose level:
- 1% Intradermal Induction; 25% Topical Induction; 5% Challenge
- No. with + reactions:
- 10
- Total no. in group:
- 10
Any other information on results incl. tables
Table: Challenge Exposure
Challenge Concentrations of Test Substance: 5% |
||
|
Number of Animals Showing Skin Reactions after |
|
24 hours |
48 hours |
|
Test Group |
10 |
10 |
Negative-Control Group |
0 |
0 |
Body Weight Development
The body weight development was within the biological range for all animals compared to historical data.
All animals of both groups survived throughout the test period.Applicant's summary and conclusion
- Interpretation of results:
- Category 1 (skin sensitising) based on GHS criteria
- Remarks:
- Migrated information
- Conclusions:
- NA-DETA should be classified as Xi;R43 according to DSD 67/548/EEC and as Warning, Category 1; H317 according to Regulation (EC) No 1272/2008.
- Executive summary:
The skin sensitization potential of NA-DETA was tested according to the Guideline OECD 406.
10 out 10 animals treated with the test substance responded upon challenge. NA-DETA should be regarded as a skin sensitizer and should be classified as Xi;R43 according to DSD 67/548/EEC and as Warning, Category 1; H317 according to Regulation (EC) No 1272/2008.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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