Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12 February 2009 - 08 May 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and EC guidelines and according to GLP principles.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Details on test material:
- Substance type: dark purple waxy solid
- Physical state: solid
- Stability under storage conditions: stable
- Storage condition of test material: at room temperature in the dark
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- < 0.5 mg/L
- Temp.:
- 20 °C
- pH:
- 6.9
- Details on results:
- No response of the test substance was observed in the chromatogram of the water sample. Based on this it was concluded that the water solubility of Custom Red #3 at 19.9°C ± 0.5°C is < 0.5 mg/l (i.e. below the limit of quantification (LOQ) of the analytical method). The pH of the aqueous sample was 6.9.
No further research on the determination of the water solubility was performed. To support the column elution method or flask method it is required that the analytical method is able to detect the test substance at the water solubility level. With the preliminary test it was found that the water solubility of the test substance is significantly lower than the LOQ level of the analytical method. The column elution method and flask method could therefore not be supported.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information): other: between insoluble and slightly soluble
The water solubility of Custom Red #3 at 19.9°C +/- 0.5°C is < 0.5 mg/l (i.e. below the limit of quantification (LOQ) of the analytical method). The pH of the aqueous sample was 6.9.
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