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Diss Factsheets
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EC number: 204-274-4 | CAS number: 118-75-2
- 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
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Skin sensitisation
Administrative data
- Endpoint:
- skin sensitisation: in vivo (LLNA)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
- Deviations:
- no
- GLP compliance:
- yes
- Type of study:
- mouse local lymph node assay (LLNA)
Test material
- Reference substance name:
- Tetrachloro-p-benzoquinone
- EC Number:
- 204-274-4
- EC Name:
- Tetrachloro-p-benzoquinone
- Cas Number:
- 118-75-2
- Molecular formula:
- C6Cl4O2
- IUPAC Name:
- 2,3,5,6-tetrachloro-1,4-benzoquinone
- Details on test material:
- - Name of test material (as cited in study report): Tetrachloro-p-benzoquinone (Chloranil)
Constituent 1
In vivo test system
Test animals
- Species:
- mouse
- Strain:
- CBA
- Sex:
- female
- Details on test animals and environmental conditions:
- TEST ANIMALS
- Source: Harlan Laboratories B.V., Postbus 6174, NL - 5960 AD Horst / The Netherlands
- Age at study initiation: 8 - 12 weeks
- Weight at study initiation: 15 - 25 g
- Housing:group
- Diet (e.g. ad libitum): pelleted standard diet, ad libitum
- Water (e.g. ad libitum): tap water, ad libitum
- Acclimation period: At least 5 days prior to the start of dosing under test conditions after health examination. Only animals without any visible signs of illness will be used for the study
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 + 2°C
- Humidity (%): 45-65%
- Photoperiod (hrs dark / hrs light): 12/12
Study design: in vivo (LLNA)
- Vehicle:
- propylene glycol
- Concentration:
- 5, 10, and 20%
- No. of animals per dose:
- 4
- Positive control substance(s):
- hexyl cinnamic aldehyde (CAS No 101-86-0)
- Statistics:
- The EC3 value could not be calculated, since all S.I.´s are above 3.
Results and discussion
- Positive control results:
- EC3 = (a-c) [(3-d)/(b-d)] + c = 7.8% (w/v)
In vivo (LLNA)
Resultsopen allclose all
- Parameter:
- SI
- Remarks on result:
- other: 5%. 4.66 10%: 5.33 20%: 7.94
- Parameter:
- other: disintegrations per minute (DPM)
- Remarks on result:
- other: DPM per lymph node Control: 290 5%: 1352 10%: 1548 20%: 2304
Any other information on results incl. tables
Test item concentration % (w/w) |
Group |
Measurement DPM |
Calculation |
Result |
||
DPM-BGa) |
number of lymph nodes |
DPM per lymph nodeb) |
S.I. |
|||
--- |
BG I |
25 |
--- |
--- |
--- |
--- |
--- |
BG II |
21 |
--- |
--- |
--- |
--- |
--- |
1 |
2344 |
2321 |
8 |
290.1 |
|
5 |
2 |
10841 |
10818 |
8 |
1352.3 |
4.66 |
10 |
3 |
12405 |
12382 |
8 |
1547.8 |
5.33 |
20 |
4 |
18453 |
18430 |
8 |
2303.8 |
7.94 |
BG=Background (1 ml 5% trichloroacetic acid) in duplicate 1=Control Group 2-4=Test Group S.I. = Stimulation Index
a) =The mean value was taken from the figures BG I and BG II b) =Since the lymph nodes of the animals of a dose group were pooled, DPM/node was determined by dividing the measured value by the number of lymph nodes pooled
The EC3 value could not be calculated, since all S.I.´s are above 3.
Viability/Mortality: No deaths occurred during the study period. Clinical Signs: No symptoms of local toxicity at the ears of the animals and no systemic findings were observed during the study period.
Body Weights: The body weight of the animals, recordedprior to the first application and prior to treatment with3HTdR, was within the range commonly recorded for animals of this strain and age.
Ear Weights: The measured ear weights (punches) of all animals treated were recorded after sacrifice. A relevant increase in ear weights (punches) was not observed and a statistically signifigance of the ear weight was not determinedApplicant's summary and conclusion
- Interpretation of results:
- sensitising
- Remarks:
- Migrated information
- Conclusions:
- The test item Tetrachloro-p-benzoquinone (Chloranil) was found to be a skin sensitiser in this assay.
- Executive summary:
In the study the test item Tetrachloro-p-benzoquinone (Chloranil) suspended in propylene glycol was assessed for its possible contact allergenic potential.
For this purpose a local lymph node assay was performed using test item concentrations of 5, 10, and 20%.
The animals did not show any clinical signs during the course of the study and no cases of mortality were observed. A relevant increase in ear weights (punches) was not observed and a statistically signifigance of the ear weight was not determined.
In this study Stimulation Indices (S.I.) of 4.66, 5.33, and 7.94 were determined with the test item at concentrations of 5, 10, and 20% in propylene glycol, respectively.
The test item Tetrachloro-p-benzoquinone (Chloranil) was found to be a skin sensitiser in this assay.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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