Registration Dossier
Registration Dossier
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 219-470-5 | CAS number: 2440-22-4
- 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

Developmental toxicity / teratogenicity
Administrative data
- Endpoint:
- developmental toxicity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- not indicated
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study design appears to follow OECD Guideline 414 (2001). Study pre-dates GLP requirements. No analytical verification of dose concentrations (considered acceptable, as substance was found stable in other studies).
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 975
- Report date:
- 1975
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 414 (Prenatal Developmental Toxicity Study)
- Deviations:
- yes
- Remarks:
- treatment only from day 6 - day 15
- GLP compliance:
- no
- Remarks:
- Study pre-dates GLP.
- Limit test:
- no
Test material
- Reference substance name:
- 2-(2H-benzotriazol-2-yl)-p-cresol
- EC Number:
- 219-470-5
- EC Name:
- 2-(2H-benzotriazol-2-yl)-p-cresol
- Cas Number:
- 2440-22-4
- Molecular formula:
- C13H11N3O
- IUPAC Name:
- 2-(2H-1,2,3-benzotriazol-2-yl)-4-methylphenol
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): TK 10047 (Tinuvin P)
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: closed SPF breeding colony (facility name not reported).
- Weight at study initiation: about 240 g (females).
- Housing: successfully mated females kept in groups of 5 in Macrolon cages.
- Diet (e.g. ad libitum): ad libitum.
- Water (e.g. ad libitum): ad libitum.
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21.5 to 22.5 degrees Celcius.
- Humidity (%): 51 to 61%.
- Photoperiod (hrs dark / hrs light): 12 hours/12 hours.
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- CMC (carboxymethyl cellulose)
- Details on exposure:
- VEHICLE
- Amount of vehicle (if gavage): the amount of fluid administered was 1 mL/100 g of body weight. - Analytical verification of doses or concentrations:
- no
- Details on mating procedure:
- - Impregnation procedure: cohoused.
- If cohoused:
- M/F ratio per cage: 1:3
- Length of cohabitation: overnight.
- Proof of pregnancy: sperm in vaginal smear referred to as day 0 of pregnancy. - Duration of treatment / exposure:
- From Day 6 until Day 15 of pregnancy, inclusive.
- Frequency of treatment:
- Once/day.
- Duration of test:
- Females were dosed from Day 6 until Day 15 of pregnancy (inclusive) and dams were autopsied and foetuses removed by Caesarean section on Day 21.
Doses / concentrationsopen allclose all
- Dose / conc.:
- 150 mg/kg bw/day (actual dose received)
- Dose / conc.:
- 500 mg/kg bw/day (actual dose received)
- Dose / conc.:
- 1 000 mg/kg bw/day (actual dose received)
- No. of animals per sex per dose:
- 25 females/dose group and 30 females in the control group.
- Control animals:
- yes, concurrent vehicle
- Details on study design:
- - Dose selection rationale: None reported.
Examinations
- Maternal examinations:
- CAGE SIDE OBSERVATIONS: Yes
- Time schedule: daily.
DETAILED CLINICAL OBSERVATIONS: Yes
- Time schedule: daily.
BODY WEIGHT: Yes
- Time schedule for examinations: daily.
FOOD CONSUMPTION AND COMPOUND INTAKE (if feeding study): Yes
POST-MORTEM EXAMINATIONS: Yes
- Sacrifice on gestation day # 21
- Organs examined: As per study report, "The examinations were carried out in accordance with W.H.O. recommendations (Wld. Hlth. Org. Techn. Rep. Ser. 364, 1967)." Organs examined included the ovaries and uterus (mucosa and contents, including amniotic fluid and placentae). - Ovaries and uterine content:
- The ovaries and uterine content was examined after termination: Yes
Examinations included:
- Number of corpora lutea: Yes
- Number of implantations: Yes
- Number of early resorptions: Yes
- Number of late resorptions: Yes - Fetal examinations:
- - External examinations: Yes: all per litter
- Soft tissue examinations: Yes: 1/3 of the foetuses were fixed in a mixture of alcohol and formol to which acetic acid was added.
- Skeletal examinations: Yes: 2/3 of the foetuses following clearing in potassium hydroxide and staining with Alizarine Red S. - Statistics:
- Not reported.
- Indices:
- Not reported.
- Historical control data:
- yes
Results and discussion
Results: maternal animals
Maternal developmental toxicity
- Details on maternal toxic effects:
- Maternal toxic effects:no effects
Details on maternal toxic effects:
Slight increase in feed consumption was noted towards the end of treatment.
Effect levels (maternal animals)
open allclose all
- Dose descriptor:
- NOAEL
- Effect level:
- 1 000 mg/kg bw/day (actual dose received)
- Basis for effect level:
- other: maternal toxicity
- Dose descriptor:
- NOEL
- Effect level:
- >= 1 000 mg/kg bw/day (actual dose received)
- Basis for effect level:
- other: developmental toxicity
Maternal abnormalities
- Abnormalities:
- no effects observed
Results (fetuses)
- Details on embryotoxic / teratogenic effects:
- Embryotoxic / teratogenic effects:no effects
Details on embryotoxic / teratogenic effects:
No adverse effects on embryonic and foetal development were noted, when data on the rates of implantations and embryolethality (resorptions) as well as foetal average weight were compared with the corresponding data of the CMC-control. By applying the slicing technique few minor anomalies were detected. The incidence of anasarca (slight oedema-like changes of siabcutis) was 5% at the highest dose group compared to 1% in the cumulative control and is still within the 99 % confidence limits of the CMC-control.
Skeletal assessment did not reveal any clear-cut deviation from the CMC-control except for a slight decrease in the number of not yet ossified phalangeal nuclei of the hind-limb as well as in the number of still incompletely ossified sternebrae at the mid dose only.
Effect levels (fetuses)
- Dose descriptor:
- NOAEL
- Effect level:
- 1 000 mg/kg bw/day (actual dose received)
- Based on:
- test mat.
- Sex:
- male/female
- Basis for effect level:
- other: no adverse effects observed
Fetal abnormalities
- Abnormalities:
- no effects observed
Overall developmental toxicity
- Developmental effects observed:
- no
Applicant's summary and conclusion
- Conclusions:
- The substance causes no teratogenicity, embryotoxicity, developmental toxicity and maternal toxicity in rats.
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.
