Registration Dossier
Registration Dossier
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EC number: 207-586-9 | CAS number: 482-89-3
Stability in organic solvents and identity of relevant degradation products
Administrative data
- Endpoint:
- stability in organic solvents and identity of relevant degradation products
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1993
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well-documented publication/study report which meets basic scientific principles
Data source
Reference
- Reference Type:
- publication
- Title:
- Verfahren zur Reinigung von Indigo
- Author:
- Kohlhaupt, Reinhold; Bergmann, Udo
- Year:
- 1 993
- Bibliographic source:
- EP 0 575 925 A1
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The patent application gives a detailed description of the purification of indigo upon heating the indigo in hydrocarbons, halogenated hydrocarbons, ether, ketones, acid amides, nitriles, alcohols, esters or there mixutres at temperatures from 150-250 °C giving pure indigo, that means that indigo is absolutely stable at these temperatures.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
- EC Number:
- 207-586-9
- EC Name:
- 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
- Cas Number:
- 482-89-3
- Molecular formula:
- C16H10N2O2
- IUPAC Name:
- 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Results and discussion
- Test substance stable:
- yes
- Transformation products:
- not specified
Applicant's summary and conclusion
- Conclusions:
- stable in organic solvents up to at least 250°C
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