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Diss Factsheets
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EC number: 200-752-1 | CAS number: 71-41-0
- 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
![](https://chesar.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Toxicity to reproduction
Administrative data
- Endpoint:
- reproductive toxicity, other
- Remarks:
- subchronic repeated dose toxicity study
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Short-term toxicity of n-amyl alcohol in rats
- Author:
- Butterworth KR, Gaunt F, Heading CE, Grassot P and Gangolli SD
- Year:
- 1 978
- Bibliographic source:
- Fd Cosmet Toxicol 16: 203-207
- Reference Type:
- secondary source
- Title:
- ICH GUIDELINE - RESIDUAL SOLVENTS
- Author:
- Connelly JC et al.
- Year:
- 1 997
- Bibliographic source:
- PHARMEUROPA Vol. 9, No 1 - Supplement, April 1997
- Reference Type:
- secondary source
- Title:
- 1-Pentanol
- Author:
- Bevan C
- Year:
- 2 001
- Bibliographic source:
- Patty's Toxicology, Sixth Edition
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: OECD Guideline 408 (Repeated Dose 90-Day Oral Toxicity in Rodents)
- Deviations:
- yes
- Remarks:
- 15 animals per sex per dose, no ophthalmological examinations
- GLP compliance:
- no
- Limit test:
- no
Test material
- Reference substance name:
- Pentan-1-ol
- EC Number:
- 200-752-1
- EC Name:
- Pentan-1-ol
- Cas Number:
- 71-41-0
- Molecular formula:
- C5H12O
- IUPAC Name:
- pentan-1-ol
- Details on test material:
- - Name of test material (as cited in study report): n-amyl alcohol
- Physical state: clear, colourless liquid
- Analytical purity: min 97%
- Impurities (identity and concentrations): arsenic, max 3 ppm; copper, max 50 ppm; iron, max 50 ppm; lead, max 10 ppm; total heavy metals (as lead), max 20 ppm.
- Specific gravity (20°/20°C), 0.815-0.816
- Refractive index (20°C), 1.410; mp, -78.9°C; b.p., 137.8°C
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: ASH/CSE
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: from a specified-pathogen-free breeding colony
- Weight at study initiation: 91.8 ± 2.1
- Diet (e.g. ad libitum): Spillers' Laboratory Small Animal Diet
- Water (e.g. ad libitum): tap-water
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 ± 1
- Humidity (%): 40 - 60
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- corn oil
- Details on exposure:
- VEHICLE
- Concentration in vehicle: in appropriate concentration so that all rats received a dosage of 5 ml/kg/day - Analytical verification of doses or concentrations:
- not specified
- Duration of treatment / exposure:
- 13 weeks
- Frequency of treatment:
- daily
Doses / concentrations
- Remarks:
- Doses / Concentrations:
50, 150, 1000 mg/kg bw/day
Basis:
actual ingested
- No. of animals per sex per dose:
- 15
- Control animals:
- yes, concurrent vehicle
Examinations
- Parental animals: Observations and examinations:
- BODY WEIGHT: Yes
- Time schedule for examinations: initially, then at days 1, 2 and 6 and at intervals of not more than 1 week up to thereafter (last weighing: days 91)
FOOD CONSUMPTION CONSUMPTION:
- Food consumption for each animal determined and mean daily diet consumption calculated as g food/kg body weight/day: Yes
WATER CONSUMPTION: Yes
- Time schedule for examinations: food and water consumptions were measured over the 24-hour period preceding the day of weighing - Postmortem examinations (parental animals):
- GROSS PATHOLOGY: Yes, at autopsy all the tissues were examined for gross abnormalities and the brain, heart, liver, spleen, kidneys, stomach, small intestine, caecum, adrenals, gonads, pituitary and thyroid were weighed.
HISTOPATHOLOGY: Yes, samples ot the above organs and of lung, lymph nodes, salivary gland, trachea, oesophagus, aortic arch, thymus, urinary bladder, colon, rectum, pancreas, uterus and skeletal muscle were preserved in 10% buffered formalin. Paraffin-wax sections of these tissues were stained with haematoxylin and eosin for microscopic examination, which was carried out on liver and kidney sections from all animals but on other types of tissue from only half of the control rats and from those given 1000 mg test substance/kg bw for 13 weeks.
Results and discussion
Results: P0 (first parental generation)
Details on results (P0)
No abnormalities in appearance or behaviour were seen during the study
BODY WEIGHT AND WEIGHT GAIN, FOOD CONSUMPTION AND WATER CONSUMPTION
There were no significant differences between the treated and control rats in body weight or in food and water consumption (see table 1).
HAEMATOLOGY AND CLINICAL CHEMISTRY (see table 2)
Only isolated differences from the controls were seen in the results of the haematological studies. These included a lower total leucocyte count at week 2 in the male rats given 150 or 1000 mg test substance/kg bw/day and lower haemoglobin concentrations at week 13 in the male animals given 50 or 1000 mg/kg bw/day. Also there were higher percentages of reticulocytes in the male rats given 1000 mg/kg bw/day at week 2 and in the females at week 13, as well as a slightly lower percentage of lymphocytes at week 6 in the females given 1000 mg/kg bw/day. The results of the serum analyses were similar in test and control rats.
URINALYSIS
The urine was free from bile, blood, glucuse and ketones, while the concentration of albumin was similar in all groups. At week 6 there were lower cell counts in the urine of the male rats given 150 or 1000 mg test substance/kg bw/day, the differences being statistically significant. Some statistically significant differences were also apparent in the concentration tests at week 12; the specific gravity of the samples collected at 16-20 hour from females given 1000 mg/kg bw/day was higher than the control value and the volume was lower. After the same period on test, the male rats given 50 or 1000 mg/kg/day produced less urine in the 6-hour period without water. No differences from the controls were found in the dilution test nor at week 2 and 6 in the concentration tests.
ORGAN WEIGHTS (see table 3)
Examination of the organ weights showed some isolated differences at week 2, but none thereafter. The stomach weights in the males and females given 1000 mg n-amyl alcohol/kg bw/day were higher than those of the controls, but the difference was confined to the male rats when the values were related to body weight. Also, a higher heart weight was found in the female rats given the top level of treatment, but this was not evident when the figure was related to body weight. Relative to body weight, the spleens from the female rats dosed with 1000 mg/kg bw/day showed a low value, as did the female kidney weights, both at this and at the 150 mg/kg bw/day level.
GROSS PATHOLOGY
At autopsy, no abnormalities were seen at any dose level
HISTOPATHOLOGY: NON-NEOPLASTIC
On histological examination, protein casts and foci of calcification were found in the kidney tubules, particularly from the male animals, but the incidences were similar in the treated animals and their corresponding controls. The incidence of fatty change and inflammatory cell infiltration in the liver was again comparable in the control and treated rats. No histological changes related to the period or level of treatment were seen in any of the organs examined.
Effect levels (P0)
- 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 effects on reproductive organs (gross pathology, histopathology)
Results: F1 generation
Effect levels (F1)
- Remarks on result:
- not measured/tested
Overall reproductive toxicity
- Reproductive effects observed:
- not specified
Any other information on results incl. tables
Table 1: Mean body weights and food and water consumption values of rats given daily doses of 0 - l000 mg test substance/kg bw/day for l3 weeks
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Table 2: Haematological values (aortic blood) for rats given daily doses of 0 -1000 mg test substance/kg bw/day
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Table 3: mean relative organ weights of rats given daily doses of 0 -1000 mg test substance/kg bw/day for 2 or 13 weeks
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Applicant's summary and conclusion
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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