Registration Dossier
Registration Dossier
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EC number: 201-100-9 | CAS number: 78-27-3
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1962
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable publication which meets basic scientific principles.
Data source
Reference
- Reference Type:
- publication
- Title:
- Range-Finding Toxicity Data: List VI
- Author:
- Smyth HF, Carpenter CP, Weil CS et al.
- Year:
- 1 962
- Bibliographic source:
- Am Ind Hyg Assoc J 23: 95-107
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- Deviations:
- not specified
- Principles of method if other than guideline:
- Method: other: Smyth/Carpenter
- GLP compliance:
- no
- Remarks:
- prior to GLP
- Test type:
- standard acute method
- Limit test:
- no
Test material
- Reference substance name:
- 1-ethynylcyclohexanol
- EC Number:
- 201-100-9
- EC Name:
- 1-ethynylcyclohexanol
- Cas Number:
- 78-27-3
- Molecular formula:
- C8H12O
- IUPAC Name:
- 1-ethynylcyclohexanol
- Test material form:
- not specified
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: Carworth-Wistar
- Sex:
- male
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Colony of the Mellon Institute of Industrial Research (Pittsburgh, Pennsylvania, USA) (in-house breeding)
- Age at study initiation: 4-5 weeks old
- Weight at study initiation: 90 to 120 g
- Fasting period before study: no
- Diet: Rockland rat diet complete
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- other: water, corn oil or 1 % Tergitol Penetrant 7
- Details on oral exposure:
- (Dose volume: 1 to 10 mL/rat, oral gavage)
- Doses:
- Logarithmic series of dose levels
- No. of animals per sex per dose:
- 5 animals
- Control animals:
- not specified
- Details on study design:
- - Duration of observation period following administration: 14 days
- Statistics:
- The most probable LD50 was estimated by the methods of Thompson (1947) and Weil (1952).
Results and discussion
Effect levelsopen allclose all
- Sex:
- male
- Dose descriptor:
- LD50
- Effect level:
- 600 mg/kg bw
- Remarks on result:
- other: reported as 0.60 mL/kg bw
- Sex:
- male
- Dose descriptor:
- LD50
- Effect level:
- >= 0.43 - <= 0.84 mL/kg bw
- Mortality:
- Death occurred within 14 days, no detailed information provided.
- Clinical signs:
- other: No information provided
- Gross pathology:
- No information provided
Any other information on results incl. tables
single oral gavage, deaths within 14 days. Limits of +/- 1.96 standard deviation using the method of Thompson: 430 - 840 mg/kg bw. Original LD50 given as 0.6 mL/kg bw.
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.
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