Registration Dossier
Registration Dossier
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EC number: 240-385-4 | CAS number: 16294-75-0
Solubility in organic solvents / fat solubility
Administrative data
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2006
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Test procedure according to method of Analytical Expert Group ETAD (Ecological and Toxicological Association of Dyes and Organic Pigment Manufacturer)
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Analytical Expert Group ETAD
- Principles of method if other than guideline:
- About 5 mg of the test sample were suspended in 30 ml octanol (Aldrich, spectrophotometric grade) in a sample flask (standard flask for the Büchi Rack R-24, volume 30 ml) and were shaken for two hours at 30°C (+/- 2°C) on a "Büchi Syncore Polyvap" with 400 rpm. Then shaking was continued at ambient temperature (23 - 25°C) for 70 hours, followed by filtration through a 0.2 µm membrane filter and then through a 0.02 µm membrane filter
The resulting clear solution was measured by UV-vis spectrometry and the absorption was determined at 519 nm. The determination was repeated three times.
Calibration for determination of concentration of the samples applying the Lambert-Beer rule: calibration curve of Solvent Orange 63 in DMSO - GLP compliance:
- no
Test material
- Reference substance name:
- 14H-anthra[2,1,9-mna]thioxanthen-14-one
- EC Number:
- 240-385-4
- EC Name:
- 14H-anthra[2,1,9-mna]thioxanthen-14-one
- Cas Number:
- 16294-75-0
- Molecular formula:
- C23H12OS
- IUPAC Name:
- 8-thiahexacyclo[10.10.2.0²,⁷.0⁹,²³.0¹³,¹⁸.0²⁰,²⁴]tetracosa-1(23),2,4,6,9,11,13,15,17,20(24),21-undecaen-19-one
Constituent 1
Results and discussion
Solubility in organic solvents / fat solubility
- Medium:
- n-octanol
- Solubility:
- 15.2 mg/L
- Temp.:
- 24 °C
- Test substance stable:
- yes
Applicant's summary and conclusion
- Conclusions:
- The solubility of the substance in n-octanol is 15.2 mg/L at 24°C (ambient temperature)
- Executive summary:
Standard methods for determination of the solubility in n-octanol do not apply for this substance. Therefore, the analytical method for the determination with the method that was agreed upon at the “Analytical Experts Meeting” of ETAD (Basel) was used.
The solubility in n-octanol was found to be 15.2 mg/L at 24°C (ambient tempearture)
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