Registration Dossier
Registration Dossier
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EC number: 211-902-0 | CAS number: 708-06-5
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: well performed OECD study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- GLP compliance:
- no
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- 2-hydroxy-1-naphthaldehyde
- EC Number:
- 211-902-0
- EC Name:
- 2-hydroxy-1-naphthaldehyde
- Cas Number:
- 708-06-5
- Molecular formula:
- C11H8O2
- IUPAC Name:
- 2-hydroxynaphthalene-1-carbaldehyde
- Details on test material:
- purity 99,6 %
Constituent 1
Study design
- Analytical method:
- photometric method
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- > 6
- Temp.:
- 23 °C
- pH:
- ca. 8
- Details on results:
- Results in detail:
determ. no. stock solution water test substance test substance log Pow
conc . in n- conc. in water
octanol phase phase
[ml] [ml] [mg/l] [mg/I]
Al 5 10 863,4 0,0009 6
A2 5 10 876,5 0,0009 6
BI 10 10 887,9 0,0009 6
B2 10 10 860,8 0,0009 6
Cl 20 10 887,8 0,0009 6
C2 20 10 890,6 0,0009 6
mean --- --- --- --- >6
Recovery rate: 97 - 100 %
Remark:
The content of the test substance in the aqueous phase is below the detection limit. Therefore
the estimated detection limit was used for the calculation of log Pow.
Applicant's summary and conclusion
- Conclusions:
- The Log Pow is >6 at 23°C
- Executive summary:
The partition coefficient m-octanol / water of the substance was determined according to OECD guideline 107 (shake-flak-method) and the Log Pow was found to be >6 at 23°C.
The content of the test substance in the aqueous phase is below the detection limit. Therefore, the estimated detection limit was used for the calculation of log Pow.
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