Registration Dossier
Registration Dossier
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EC number: 916-632-3 | CAS number: -
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:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Disodium 4-amino-3-[[4-[(2-amino-4-hydroxyphenyl)azo]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate
- EC Number:
- 270-629-5
- EC Name:
- Disodium 4-amino-3-[[4-[(2-amino-4-hydroxyphenyl)azo]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate
- Cas Number:
- 68460-07-1
- Molecular formula:
- C28H22N8O8S2.2Na
- IUPAC Name:
- disodium 4-amino-3-({4-[(2-amino-4-hydroxyphenyl)diazenyl]phenyl}diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonate
- Reference substance name:
- Disodium 4-amino-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate
- EC Number:
- 272-559-0
- EC Name:
- Disodium 4-amino-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate
- Cas Number:
- 68877-33-8
- Molecular formula:
- C28H23N9O7S2.2Na
- IUPAC Name:
- disodium 4-amino-3-({4-[(2,4-diaminophenyl)diazenyl]phenyl}diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonate
Constituent 1
Constituent 2
Study design
- Analytical method:
- high-performance liquid chromatography
Results and discussion
Partition coefficient
- Key result
- Type:
- log Pow
- Partition coefficient:
- -2.44
- Temp.:
- 23 °C
- pH:
- 6
- 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 |
0.3030 |
461.5 |
- 2.48 |
A2 |
5 |
10 |
0.3249 |
418.3 |
- 2.41 |
B1 |
10 |
10 |
0.2718 |
460.2 |
- 2.53 |
B2 |
10 |
10 |
0.2188 |
452.9 |
- 2.62 |
C1 |
20 |
10 |
0.4442 |
454.0 |
- 2.31 |
C2 |
20 |
10 |
0.4508 |
451.8 |
- 2.30 |
mean |
- |
- |
- |
- |
- 2.44 |
Stock solution: 813 mg/L = 539 mg/L active substance
The recovery rate of the test substance was between 89 % and 91%.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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