Registration Dossier
Registration Dossier
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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.
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- 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.
- 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. 3-382] **PEER REVIEWED**
- Principles of method if other than guideline:
- principles of method are not described in the HSDB but is **PEER REVIEWED** data.
- Boiling pt.:
- 167 °C
- Atm. press.:
- 1 atm
- Conclusions:
- The boiling point of Myrcene, representing at about 2.3% in the UVCB substance, is 167°C at 1 atm.
- Endpoint:
- boiling point
- 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.
- Qualifier:
- according to guideline
- Guideline:
- other: [O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 1283] **PEER REVIEWED**
- Principles of method if other than guideline:
- principles of method are not described in the HSDB but is **PEER REVIEWED** data.
- GLP compliance:
- not specified
- Boiling pt.:
- ca. 156 °C
- Atm. press.:
- 760 mm Hg
- Conclusions:
- Alpha pinene boiling point representing at about 2.5% is 156°C at 1 atm.
- Endpoint:
- boiling point
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Study period:
- 2012
- 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 provided from validated QSAR.
- Qualifier:
- according to guideline
- Guideline:
- other: EPI Suite
- Version / remarks:
- v4.11
- Principles of method if other than guideline:
- no data
- Boiling pt.:
- ca. 142 °C
- Atm. press.:
- ca. 1 atm
- Remarks on result:
- other: atm pressure is presumed.
- Conclusions:
- Sabinene representing about 6% of the UVCB has a boiling point of 142°C according to EPI suite.
- Endpoint:
- boiling point
- 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.
- Qualifier:
- according to guideline
- Guideline:
- other:
- Version / remarks:
- [Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V3: 2311] **PEER REVIEWED**
- Principles of method if other than guideline:
- principles of method are not described in the HSDB but is **PEER REVIEWED** data.
- Boiling pt.:
- 209 °C
- Atm. press.:
- 1 atm
- Conclusions:
- The boiling point of the contituent representing about % 2.5 of the UVCB substance is 209°C.
- Endpoint:
- boiling point
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Study period:
- 2014
- 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.
- Qualifier:
- according to guideline
- Guideline:
- other: [Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007., p. 1241] **PEER REVIEWED**
- Principles of method if other than guideline:
- no data
- GLP compliance:
- not specified
- Boiling pt.:
- 203 °C
- Atm. press.:
- ca. 1 atm
- Conclusions:
- Thujone representing more than 72% of the UVCB has a boiling point of 203°C.
Referenceopen allclose all
Description of key information
Literature provided data for the 5 major components representing more than 86% of the UVCB substance:
| Constituent names | CAS nr | Boiling point | source |
| thuyone alpha + beta (at about 60%) | 546 -80 -5 / 471-15-8 | 203°C | HSDB |
| sabinene (at about 5.5%) | 3387 -41 -5 | 142°C | EPI suite v4.11 |
| terpinen-4-ol (at about 2.5%) | 562-74-3 | 209°C | HSDB |
| pinene alpha (at about 2.5%) | 80-56 -8 | 156°C | HSDB |
| myrcene (at about 2.3%) | 123-35-3 | 167°C | HSDB |
Key value for chemical safety assessment
Additional information
No study was conducted on the oil iself, as not relevant for an UVCB substance.
The boiling point of the test item is estimated between 142°C and 203°C which are the min and max boiling point of the major constituents.
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.
