Registration Dossier
Registration Dossier
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EC number: 276-657-4 | CAS number: 72428-99-0
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2006
- 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:
- 2 007
- Report date:
- 2007
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: calculation from individual solubilities
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Hydrogen [[[(2-ethylhexyl)amino]sulphonyl][[(3-methoxypropyl)amino]sulphonyl]-29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cuprate(1-), compound with N,N'-di(o-tolyl)guanidine (1:1)
- EC Number:
- 276-657-4
- EC Name:
- Hydrogen [[[(2-ethylhexyl)amino]sulphonyl][[(3-methoxypropyl)amino]sulphonyl]-29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cuprate(1-), compound with N,N'-di(o-tolyl)guanidine (1:1)
- Cas Number:
- 72428-99-0
- Molecular formula:
- C32H13CuN8O4S2.(SO3H)m.(C4H11NO)n.(C8H18N) (3-m-n).C15H17N3
- IUPAC Name:
- hydrogen [[[(2-ethylhexyl)amino]sulphonyl][[(3-methoxypropyl)amino]sulphonyl]-29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cuprate(1-), compound with N,N'-di(o-tolyl)guanidine (1:1)
Constituent 1
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- 4.1
- Temp.:
- 24 °C
- pH:
- ca. 7
Any other information on results incl. tables
Solubility of Solvent Blue 44 in n-octanol: 697 mg/l
Water solubility of Solvent Blue 44 : 59 µg/l
Pow SBl 44 = 11814
log Pow SBl44 = 4.1
Applicant's summary and conclusion
- Conclusions:
- The Log Pow of the substance is 4.1at 24°C (ambient temperature)
- Executive summary:
The partition coefficient n-octanol/water was calculated from the individual solubilities of the substance in each of these solvents.
The analytical method for the determination is in agreement with the method that was agreed upon at the “Analytical Experts Meeting” of ETAD (Basel) on January 12, 2005.
The water solubility (chapter 4.8) was determined as 59 µg/L and the n-octanol solubility (chapter 4.9) as 697 mg/L (24°C, ambient temperature).
Out of these results the Log Pow can be calculated as 4.1
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