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EC number: 201-545-9 | CAS number: 84-61-7
- 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
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Endpoint summary
Administrative data
Description of key information
Oral, LD50 > 2000 mg/kg bw , rat (OECD 423 )
Dermal, LD50 > 2000 mg/kg bw , rat (OECD 402 )
In accordance with column 2 of REACH Annex VIII, the acute toxicity by inhalation study (required in section 8.5.2) does not need to be conducted as acute toxicity studies are available for the oral and dermal routes of exposure.
Key value for chemical safety assessment
Acute toxicity: via oral route
Link to relevant study records
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 7th June to 24 th June 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study in compliance with international recognized guidelines
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.1 tris (Acute Oral Toxicity - Acute Toxic Class Method)
- Deviations:
- no
- GLP compliance:
- yes
- Test type:
- acute toxic class method
- Species:
- rat
- Strain:
- other: Sprague Dawley SD
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- Animal supply and acclimatisation
Species and strain: Rat, Sprague Dawley SD
Number and sex: Females (nulliparous and non-pregnant)
Age and weight range (at order): 6 to 7 weeks old, 150 to 174 grams
Supplier: Charles River Italia S.p.A., Calco (Lecco), Italy
Breeder: Charles River Italia S.p.A., Calco (Lecco), Italy
Date of arrival: 31 May 2012
Weight range at arrival: 160 to 171 grams
Acclimatisation period: At least 5 days
Veterinary health check: After arrival
Caging
No. of animals/cage: 3 during the study; up to 5 during acclimatisation
Housing: polisulphone solid bottomed cages measuring 42.5x26.6x18.5 cm (during acclimatisation) and 59x38.5x20 (during the study) cm with nesting material
Cage tray control: Daily inspected and changed as necessary (at least 3 times/week)
Water and diet
Water: Drinking water supplied to each cage via a water bottle
Water supply: Ad libitum
Diet: 4 RF 18 (Mucedola S.r.l., Via G. Galilei, 4, 20019, Settimo Milanese (MI) Italy)
Diet supply: Ad libitum throughout the study except for dosing procedure indicated in section 4.2.2
Housing conditions (parameters set)
Room lighting : Artificial (fluorescent tubes), daily light/dark cycle of 12/12 hours
Air changes : Approximately 15 to 20 air changes per hour
Temperature range: 22°C ± 2°C
Relative humidity range: 55% ± 15%
Actual conditions were monitored and recorded and records retained. No relevant deviations occurred. - Route of administration:
- oral: gavage
- Vehicle:
- corn oil
- Details on oral exposure:
- The acute toxicity of DICYCLOHEXYL PHTHALATE was investigated following a single oral administration (10 mL/kg in corn oil) to the Sprague Dawley rat followed by a 14-day observation period.
- Doses:
- Frequency of treatment: Once only, on the day of dosing (Day 1).
Fasting procedure: Overnight prior to dosing (Day –1) up to 4 hours after dosing.
Dose calculation: Dose volume of 10 mL/kg of body weight for each animal.
Dosing method: By gavage, using a plastic feeding tube attached to a graded syringe. - No. of animals per sex per dose:
- 3 females per doses
- Control animals:
- no
- Details on study design:
- A first sub-group of 3 female animals was dosed at a level of 2000 mg/kg (Step 1). Mortality did not occur. A second sub-group, similarly composed, was then dosed at the same dose level (Step 2). No mortality occurred.
No further doses were investigated since the objective of the study had been achieved. - Statistics:
- not applocable
- Preliminary study:
- not applicable
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- No mortality occurred in the 6 animals dosed in two sub-groups treated at 2000 mg/kg (Steps 1 and 2).
- Clinical signs:
- other: No clinical signs were recorded in the 6 animals dosed in two sub-groups treated at 2000 mg/kg (Steps 1 and 2).
- Gross pathology:
- At necropsy examination, no abnormalities were observed in any animal of the study (Steps 1 and 2).
- Interpretation of results:
- other: not classified
- Conclusions:
- The acute toxicity of DICYCLOHEXYLPHTHALATE was investigated following a single oral administration (10 mL/kg in corn oil) to the Sprague Dawley rat followed by a 14-day observation period.
No mortality occurred and no signs of toxicity were observed in the 6 animals following dosing at 2000 mg/kg.
These results indicate that the test item DICYCLOHEXYLPHTHALATE did not induce effects of toxicological relevance in the rat following oral administration of a single dose at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg body weight. - Executive summary:
The acute toxicity of DICYCLOHEXYLPHTHALATE was investigated following a single oral administration to the Sprague Dawley rat. The test item (batch 031-12) was administered at 2000 mg/kg (dose volume of 10 mL/kg using corn oil as vehicle).
Animals were observed for a 14 day period, then subjected to necropsy examination.
A first sub-group of 3 female animals was initially dosed at 2000 mg/kg (Step 1). No mortality occurred and no clinical signs were observed.
A second sub-group of 3 female animals was then dosed at the same dose level (Step 2). No deaths occurred and no clinical signs were noted.
Body weight changes recorded during the study were within the expected range for this strain and age of animals.
No abnormalities were observed in any animal treated at necropsy examination performed at the end of the observation period.
These results indicate that the test item DICYCLOHEXYLPHTHALATE did not induce effects in the rat following oral administration of a single dose at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg body weight.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed
Acute toxicity: via inhalation route
Endpoint conclusion
- Endpoint conclusion:
- no study available
Acute toxicity: via dermal route
Link to relevant study records
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 12 June to 27 June 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study in compliance with international recognized guidelines
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.3 (Acute Toxicity (Dermal))
- Deviations:
- no
- GLP compliance:
- yes
- Test type:
- standard acute method
- Species:
- rat
- Strain:
- other: Sprague Dawley SD
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- Animal supply and acclimatisation
Species and strain: Rat, Sprague Dawley SD
Sex: Males and females (nulliparous and non-pregnant)
Age and weight range (at order): 6 to 8 weeks old, 176 to 200 grams
Supplier :Charles River Italia S.p.A., Calco (Lecco), Italy
Breeder :Charles River Italia S.p.A., Calco (Lecco), Italy
Date of arrival :31 May 2012
Weight range at arrival: 197 to 203 grams
Acclimatisation period: At least 5 days
Veterinary health check: After arrival
Caging
No. of animals/cage: 5/cage (during acclimatisation ) and individually caged (during study)
Housing: Polycarbonate cages measuring 42.5x26.6x18 cm (during both acclimatisation and study periods) with stainless steel mesh lid and floor. Nesting material was provided inside suitable bedding bags.
Cage tray control: Daily inspected and changed as necessary (at least twice times/week)
Water and diet
Water : Drinking water supplied to each cage via a water bottle
Water supply :Ad libitum
Diet : 4 RF 18 (Mucedola S.r.l., Via G. Galilei, 4, 20019, Settimo Milanese (MI) Italy)
Diet supply : Ad libitum throughout the study
Housing conditions (parameters set)
Room lighting: :Artificial (fluorescent tubes), daily light/dark cycle of 12/12 hours
Air changes: : Approximately 15 to 20 air changes per hour
Temperature range: 22°C ± 2°C
Relative humidity range: 55% ± 15%
Actual conditions were monitored, recorded and records retained. No relevant deviations occurred. - Type of coverage:
- occlusive
- Vehicle:
- corn oil
- Details on dermal exposure:
- A single group of 5 male and 5 female animals was dosed at a level of 2000 mg/kg.
- Duration of exposure:
- 24 hours
- Doses:
- Frequency of treatment: Once only, on the day of dosing (Day 1).
Treatment area preparation: on the day before dosing (Day –1).
A single area was clipped free of hair (by an electric clipper equipped with a suitable blade) on the dorsal surfaces of the trunk of each animal (approximately 10% of body surface).
Care was taken to avoid damage to the skin.
Dose calculation: Aliquots were weighed according to the body weight of each animal measured prior to dosing.
Dosing procedure: An aliquot of the supplied test item was spread evenly over an area of approximately 10% of the body surface area. A patch of surgical gauze covered by a strip of synthetic film was placed over the treated site and the whole assembly held in place by encirclin g the trunk of the animal with a length of elastic adhesive bandage, this forming a semi-occlusive barrier.
Exposure time :24 hours
Washing procedure: After exposure, the adhesive bandage and gauze patch were removed. The treatment area was cleaned by gentle swabbing of the skin with cotton wool soaked with lukewarm water. - No. of animals per sex per dose:
- 5 animals/sex/group
- Control animals:
- no
- Details on study design:
- Dose level Animal number
mg/kg Males (even) Females (odd)
2000 2, 4, 6, 8, 10 1, 3, 5, 7, 9
Males and females were identified by even and odd numbers, respectively. - Statistics:
- not applicable
- Preliminary study:
- not applicable
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- No mortality occurred in male or female animals after treatment during the observation period.
- Clinical signs:
- other: Clinical signs were limited to scab on the neck seen in one animal from Day 8 to Day 15 (not confirmed at post mortem examination). This sign is not considered toxicologically relevant.
- Gross pathology:
- At necropsy examination, no abnormalities were found in any animals, including the examination of the treatment site.
- Interpretation of results:
- other: not classified
- Conclusions:
- The acute toxicity of DICYCLOHEXYLPHTHALATE was investigated following dermal administration of a single dose to the rat at 2000 mg/kg.
No mortality occurred following dosing and no toxicologically relevant signs of toxicity were observed.
These results indicate that the test item, DICYCLOHEXYLPHTHALATE, has no toxic effect on the rat following dermal exposure over a 24 hour period at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg - Executive summary:
The acute toxicity of DICYCLOHEXYLPHTHALATE was investigated following dermal administration of a single dose to the rat. A single dose of 2000 mg/kg was administered to a group of 5 male and 5 female animals for 24 hours. After 14 days all animals were killed and subjected to necropsy examination. No mortality occurred and no toxicologically relevant clinical signs were observed in male or female animals during the observation period.
The body weight changes observed during the study were within the expected range for this species and age of animals.
No abnormalities were found at necropsy in the animals at termination of the study. No abnormalities were observed at the treated site.
These results indicate that the test item, DICYCLOHEXYLPHTHALATE, has no toxic effect on the rat following dermal exposure over a 24 hour period at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed
Additional information
The acute toxicity of dicyclohexylphthalate was evaluated in 1 key oral (gavage) study and a key dermal study.
The oral study was carried out accordin to OECD Guideline No. 423 while the dermal study was carried out according to OECD Guideline 402. Both the studies were compliant with Good Laboratory Practices (GLP).
In the oral test the acute toxicity of DICYCLOHEXYLPHTHALATE was investigated following a single oral administration (10 mL/kg in corn oil) to the Sprague Dawley rat followed by a 14-day observation period.
No mortality occurred and no signs of toxicity were observed in the 6 animals following dosing at 2000 mg/kg.
These results indicate that the test item DICYCLOHEXYLPHTHALATE did not induce effects of toxicological relevance in the rat following oral administration of a single dose at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg body weight.
In the dermal study the acute toxicity of DICYCLOHEXYLPHTHALATE was investigated following dermal administration of a single dose to the rat at 2000 mg/kg.
No mortality occurred following dosing and no toxicologically relevant signs of toxicity were observed.
These results indicate that the test item, DICYCLOHEXYLPHTHALATE, has no toxic effect on the rat following dermal exposure over a 24 hour period at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg.
Justification for selection of
acute toxicity – oral endpoint
GLP study in compliance with international recognized guidelines
Justification for selection of acute toxicity – inhalation endpoint
In accordance with column 2 of REACH Annex VIII, the acute toxicity
by inhalation study (required in section 8.5.2) does not need to be
conducted as acute toxicity studies are available for the oral and
dermal routes of exposure.
Justification for selection of acute toxicity – dermal endpoint
GLP study in compliance with international recognized guidelines
Justification for classification or non-classification
The submission substance has a rat acute oral LD50 of greater than 2000 mg/kg bw. As a result, the substance does not meet the criteria for classification according to Regulation (EC) No 1272/2008, Annex I section 3.1.
The submission substance has a rat acute dermal LD50 of greater than 2000 mg/kg bw. As a result, the substance does not meet the criteria for classification according to Regulation (EC) No 1272/2008, Annex I section 3.1.
No data is available to address acute dermal toxicity. As a result, the substance does not meet the criteria for classification according to Regulation (EC) No 1272/2008, Annex I section 3.1
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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