Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 909-082-0 | CAS number: 938065-79-3
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 8 September - 15 December 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study according to GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 004
- Report date:
- 2004
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- Reaction mass of 5,12-dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione and 5,12-dihydro-2-methylquino[2,3-b]acridine-7,14-dione and 5,12-dihydroquino[2,3-b]acridine-7,14-dione
- EC Number:
- 909-082-0
- Cas Number:
- 938065-79-3
- Molecular formula:
- Unspecified
- IUPAC Name:
- Reaction mass of 5,12-dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione and 5,12-dihydro-2-methylquino[2,3-b]acridine-7,14-dione and 5,12-dihydroquino[2,3-b]acridine-7,14-dione
Constituent 1
Results and discussion
Melting / freezing point
- Decomposition:
- yes
- Decomp. temp.:
- ca. 310 °C
Any other information on results incl. tables
The DSC curve of the preliminary test (heating rate of 20 K/min from 25°C to 400°C) showed no endothermic heat effect from which melting could be deduced. After the experiment, the sample was unchanged, a fine pink powder without loosing any weight.
To confirm the result of the preliminary test, a second run was performed, in which no endothermic reaction could be observed. Starting at about 310°C an exothermic reaction was observed (taken here as decomposition temperature). After the experiment, the sample had lost about 43.8 % of its mass and the sample was unchanged, a fine pink colored powder.
Applicant's summary and conclusion
- Conclusions:
- The test item does not melt under the conditions of the test and starts to decompose before melting at approximately 310°C.
- Executive summary:
The melting point of the test substance was investigated in a study according to OECD and EU testing guidelines. The test substance did not melt and started to decompose before melting at approximately 310°C.
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.
