Registration Dossier
Registration Dossier
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EC number: 444-090-3 | CAS number: 204848-45-3
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study according to OECD 121
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC))
- GLP compliance:
- yes
- Type of method:
- HPLC estimation method
- Media:
- soil
Test material
- Reference substance name:
- -
- EC Number:
- 444-090-3
- EC Name:
- -
- Cas Number:
- 204848-45-3
- Molecular formula:
- C44 H43 N3 O4
- IUPAC Name:
- Propanoic acid, 2-[4-[4,6-bis([1,1'-biphenyl]-4-yl)-1,3,5-triazin-2-yl]-3-hydroxyphenoxy]-, isooctyl ester
- Details on test material:
- - Physical state: Slightly yellow powder
- Storage condition of test material: Room temperature {ca 20°C)
Constituent 1
- Radiolabelling:
- no
Study design
- Test temperature:
- 25 °C
HPLC method
- Details on study design: HPLC method:
- EQUIPMENT
- Apparatus: Hewlett Packard 1050 Liquid Chromatograph
- Column: Hypersil H5CPS (25 cm x 4.6 mm internal diameter)
- Detection system:
UV set at 220 nm (reference mixture)
UV set at 320 nm (test substance)
MOBILE PHASES
- Type: Acetonitrile:pH 4 phosphate buffer (55:45 v/v) and methanol:pH 9 borate buffer (55:45 v/v)
- Experiments with additives carried out on separate columns: no
- pH: 4 and 9
REFERENCE SUBSTANCES
I.D.S.
Acetanilide
Nitrobenzene
Naphthalene
2-Methylnaphthalene
Anthracene
DDT
Internal deadtime standard (I.D.S.): Formamide
DETERMINATION OF RETENTION TIMES
- Quantity of test substance introduced in the column:
- Quantity of reference substances: 6
Results and discussion
Adsorption coefficient
- Type:
- log Koc
- Value:
- > 5.4
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- Adsorption to solid soil phase is expected.
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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