Registration Dossier
Registration Dossier
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Reaction mass of Pentasodium 2-amino-1-((4-(4-(4-((2-(sulfonatooxy)ethyl)sulfonyl)phenyl)amino-6-chloro-1,3,5-triazin)aminodisulfonatophenyl)diazenyl)-8-hydroxy-naphthalenedisulfonate and Tetrasodium 2-amino-1-((4-(4-(4-(vinylsulfonyl)phenyl)amino-6-chloro-1,3,5-triazin)aminodisulfonatophenyl)diazenyl)-8-hydroxy-naphthalenedisulfonate
EC number: - | CAS number: -
Partition coefficient
Some information in this page has been claimed confidential.
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 5 Aug 2013
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Guideline:
- other: REACH guidance on QSARs R.6, May 2008
- Principles of method if other than guideline:
- Because the test item was expected to have a log Pow lower than 0, the shake-flask method should be used for the determination of the log Pow of Red VP2298. During Non-GLP-Pre-Tests buffer solutions of test item with concentration 1 g/L with pH 2, pH 4 and pH6 were shaken with 1-octanol. Each buffer-phase was coloured, all 1-octanol-phases were uncoloured. Spectra were recorded using a photometer (190 – 1100 nm). The buffer solutions showed an absorption maximum at 529 nm, the 1-octanol-phases did not show any absorption at 529 nm. It is thus concluded, that the concentration of Red VP2298 in the 1-octanol-phase is not determinable using a photometric method. Therefore a calculation of the log Pow was recommended by the study director.
For the calculation of the log POW the program KOWWIN 1.68 (US EPA 2012 Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.10. United States Environmental Protection Agency, Washington, DC, USA) was used. - GLP compliance:
- no
- Partition coefficient type:
- octanol-water
Test material
Constituent 1
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- >= -8.47 - <= -4.44
- pH:
- 6
- Remarks on result:
- other: generated by KOWIN 1.68
Applicant's summary and conclusion
- Conclusions:
- The log Pow of the test substance, generated for ionisation states at pH 6 by KOWWIN 1.68 is between -8.47 and -4.44.
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