Registration Dossier
Registration Dossier
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EC number: 837-106-9 | CAS number: 71472-57-6
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 30 October 2018 - 12 December 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method according to Siwoloboff
Test material
- Reference substance name:
- 6-methyl-3,4-dihydro-2H-1,4-benzoxazine
- EC Number:
- 837-106-9
- Cas Number:
- 71472-57-6
- Molecular formula:
- C9H11NO
- IUPAC Name:
- 6-methyl-3,4-dihydro-2H-1,4-benzoxazine
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- Identity: 6-methyl-3,4-dihydro-2H-1,4-benzoxazine
Appearance: Amber viscous liquid
Storage conditions: Refrigerated (2 to 8°C), dark, under nitrogen
Batch number: EXP-18-GM6341
Purity: 99% w/w
Expiry date: 01 February 2019
Results and discussion
Boiling point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- ca. 150 °C
Any other information on results incl. tables
The results of duplicate definitive determinations on the substance were as follows:
Barometric pressure: 1017 mbar.
As the boiling tubes were heated at 1°C/minute, the samples were observed to darken at temperatures above approximately 150°C, indicating decomposition. When heated beyond this temperature in a preliminary trial, the sample continued to darken until boiling at approximately 280°C.
Applicant's summary and conclusion
- Conclusions:
- The boiling temperature of the substance was not determinable as the test item decomposed at temperatures above approximately 150°C before boiling.
- Executive summary:
The purpose of this study was to examine some physicochemical properties of the test substance.
The study was conducted in accordance with accepted principles in order to meet the requirements of REACH Regulation (EU) No 1907/2006 of the European Parliament and of the Council, Council Regulation (EC) No 440/2008 (as amended) of 30 May 2008 and the OECD Guidelines for Testing of Chemicals.
The boiling temperature of the substance was not determinable as the test item decomposed at temperatures above approximately 150°C before boiling according to EC method A.2 and OECD method 103.
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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