Registration Dossier
Registration Dossier
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EC number: 276-541-3 | CAS number: 72252-61-0
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- OECD 107
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Disodium [5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxybenzene-1,3-disulphonato(4-)]cuprate(2-)
- EC Number:
- 276-541-3
- EC Name:
- Disodium [5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxybenzene-1,3-disulphonato(4-)]cuprate(2-)
- Cas Number:
- 72252-61-0
- Molecular formula:
- C16H10CuN4O8S2.2Na
- IUPAC Name:
- disodium [5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxybenzene-1,3-disulphonato(4-)]cuprate(2-)
- Test material form:
- solid: nanoform
Constituent 1
Study design
- Analytical method:
- high-performance liquid chromatography
Results and discussion
Partition coefficient
- Key result
- Type:
- log Pow
- Partition coefficient:
- -4.75
- Temp.:
- 23 °C
- pH:
- ca. 7.4
- Remarks on result:
- other: mean of 6 measurements
Any other information on results incl. tables
Table 1: Results
no. |
stock solution [mL] |
n-octanol [mL] |
conc. in n-octanol phase [mg/L] |
conc. in water phase [mg/L] |
log pow |
A1 |
5 |
10 |
0.010 |
617.1 |
- 4.79 |
A2 |
5 |
10 |
0.008 |
609.4 |
- 4.88 |
B1 |
10 |
10 |
0.011 |
606.3 |
- 4.74 |
B2 |
10 |
10 |
0.011 |
603.4 |
- 4.74 |
C1 |
20 |
10 |
0.011 |
603.4 |
- 4.74 |
C2 |
20 |
10 |
0.014 |
601.4 |
- 4.63 |
mean |
- |
- |
- |
- |
- 4.75 |
Stock solution: 729 mg/L = 586.1 mg/L active substance
The recovery rate of the test substance was between 103 % and 105 %.
Applicant's summary and conclusion
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