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EC number: 305-105-8 | CAS number: 94334-32-4 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Thuya plicata, Cupressaceae.
- 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

Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- (Q)SAR
- Remarks:
- EPI
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- Data comes from an online compilation using QSAR model. There is no experimental study reference, however data provide from validated model.
No study was conducted on the oil iself, as not relevant for an UVCB. Literature provided data for the six major components representing more than 85% of the UVCB. Alpha thuyone content of the UVCB is about 66%. - Qualifier:
- according to guideline
- Guideline:
- other: EPI suite
- Version / remarks:
- v4.11
- Principles of method if other than guideline:
- QSAR method
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0.449 mm Hg
- Conclusions:
- Vapour pressure of alpha thuyone which is present at a concentration of about 66% (typical value) is 0.449 mmHg at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- (Q)SAR
- Remarks:
- EPI
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- Data comes from an online compilation using QSAR model. There is no experimental study reference, however data provide from validated model.
No study was conducted on the oil iself, as not relevant for an UVCB. Literature provided data for the six major components representing more than 85% of the UVCB. Beta thuyone content of the UVCB is about 9%. - Qualifier:
- according to guideline
- Guideline:
- other: EPI suite
- Version / remarks:
- v4.11
- Principles of method if other than guideline:
- QSAR model
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0.449 mm Hg
- Conclusions:
- Vapour pressure of beta thuyone which is present at a concentration of about 9% (typical value) is 0.449 mmHg at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed.
No study was conducted on the oil iself, as not relevant for an UVCB. Literature provided data for the six major components representing more than 85% of the UVCB (Myrcene content about 2.3%). - Qualifier:
- according to guideline
- Guideline:
- other: [Haynes, W.M. (ed.) CRC Handbook of Chemistry and Physics. 91st ed. Boca Raton, FL: CRC Press Inc., 2010-2011, p. 6-112] **PEER REVIEWED**
- Principles of method if other than guideline:
- no data
- Temp.:
- 25 °C
- Vapour pressure:
- 2.09 mm Hg
- Conclusions:
- The vapor pressure of myrcene (at 2.3% in the UVCB) is 2.09 mm Hg at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed.
No study was conducted on the oil iself, as not relevant for an UVCB. Literature provided data for the 6 major components representing more than 85% of the UVCB. alpha pinene represents 2.5% of the UVCB. - Qualifier:
- according to guideline
- Guideline:
- other: [Daubert, T.E., R.P. Danner. Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. Washington, D.C.: Taylor and Francis, 1989.] **PEER REVIEWED**
- Principles of method if other than guideline:
- no data
- Temp.:
- 25 °C
- Vapour pressure:
- 4.75 mm Hg
- Conclusions:
- The vapor pressure of pinene alpha (2.5% of the UVCB) is 4.75 mm Hg at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- (Q)SAR
- Remarks:
- EPI
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- Data comes from an online compilation using QSAR model. There is no experimental study reference, however data provide from validated model.
No study was conducted on the oil iself, as not relevant for an UVCB. Literature provided data for the six major components representing more than 85% of the UVCB. Sabinene content of the UVCB is about 5.6% - Qualifier:
- according to guideline
- Guideline:
- other: EPI suite
- Version / remarks:
- 4.11
- Principles of method if other than guideline:
- EPI suite, QSAR aprroach
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 7.36 mm Hg
- Conclusions:
- Vapour pressure of sabinene which is present at a concentration of about 5.6% (typical value) is 7.36 mmHg at 25°C.
- Endpoint:
- vapour pressure
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Justification for type of information:
- Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed.
No study was conducted on the oil iself, as not relevant for an UVCB. Literature provided data for the six major components representing more than 85%. terpinene-4-ol content of the UVCB : ca 2.5% - Qualifier:
- no guideline required
- Principles of method if other than guideline:
- no data
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0.04 mm Hg
- Conclusions:
- Vapour pressure of terpinene-4-ol which is present at a concentration of about 2.5% is estimated at 0.04 mmHg at 25°C.
Referenceopen allclose all
Description of key information
Literature provided data for the 6 major components representing more than 85% of the UVCB substance:
Constituent names | CAS nr | Vapour pressure at 25°C | source |
thuyone alpha (at about 66%) | 546 -80 -5 | 0.449 mmHg | HSDB |
sabinene (at about 5.5%) | 3387 -41 -5 | 7.36 mmHg | EPI suite v4.11 |
terpinen-4-ol (at about 2.5%) | 562-74-3 | 0.04 mmHg | HSDB |
pinene alpha (at about 2.5%) | 80-56 -8 | 4.75 mmHg | HSDB |
myrcene (at about 2.3%) | 123-35-3 | 2.09 mmHg | HSDB |
thuyone beta (at about 9%) | 471-15-8 | 0.449 mmHg | HSDB |
Key value for chemical safety assessment
Additional information
No study was conducted on the oil iself, as not relevant for an UVCB.
The vapour pressure at 25°C of the test item is estimated between 0.449 mmHg and 7.36 mmHg.
As no CSA is required for the tonnage band of concern, no key value was retained.
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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