Registration Dossier
Registration Dossier
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EC number: 232-340-2 | CAS number: 8005-56-9 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 71110.
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Procedure according to method of Analytical Expert Group ETAD (Ecological and Toxicological Association of Dyes and Organic Pigment Manufacturer); method similar to Annex V, A.8, 1.6.1, Directive 67/548/EEC
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:
- 2005
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient)
- Principles of method if other than guideline:
- Based on the determined solubilities in water and in n-octanol the partition coefficient was estimated (chapter 1.6.1, A.8). Instead of saturated solvent
systems pure solvents were used. - Type of method:
- other: ETAD method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione
- EC Number:
- 224-597-4
- EC Name:
- Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione
- Cas Number:
- 4424-06-0
- Molecular formula:
- C26H12N4O2
- IUPAC Name:
- bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione
Constituent 1
Results and discussion
Partition coefficientopen allclose all
- Type:
- log Pow
- Partition coefficient:
- 0.26
- Temp.:
- 24 °C
- pH:
- ca. 7
- Type:
- Pow
- Partition coefficient:
- 1.8
- Temp.:
- 24 °C
- pH:
- ca. 7
Any other information on results incl. tables
Solubility of Pigment Orange 43 in n-octanol: 13.0 µg/L
Water solubility of Pigment Orange 43 : 7.2 µ/L
Applicant's summary and conclusion
- Executive summary:
The log Pow of Pigment Orange 43 is 0.26.
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