Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The partition coefficient (Log Kow) of Rosetal A has been determined as 6.2-6.8 at 24°C in a study equivalent to OECD Guideline 117 (HPLC Method).
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 6.2
- at the temperature of:
- 24 °C
Additional information
The substance is a multi-constituent with small and large molecules with estimated log Kow of 1.44 - 10.4. Therefore the constituents are clustered into 4 Blocks. The log Kow measured is likely to represent Block 3. The Blocks are presented in the attached document.
Annex 1: Structural information on Rosetal A
| Name | CAS | % | Structure | MW | Log Kow | ECHA reference |
Block 0 | 2‐phenylacetaldehyde | 122-78-1 | 1.26 | 120 | 1.44 (25◦C, OECD TG 117) | Information available in ECHA disseminated dossier | |
Block 1 | (2,2‐dimethoxyethyl)benzene | 101-48-4 | 13.10 | 166 | 2.23 (24.7◦C, OECD TG 117) | Information available in ECHA disseminated dossier | |
Block 2 | 3,7‐dimethyloct‐6‐en‐1‐ol (Citronellol) | 106‐22‐9 | 3.04 | 156 | 3.41 (25◦C, EC A.8) | Information available in ECHA disseminated dossier | |
Block 2 | (Z)‐3,7‐dimethylocta‐2,6‐dien‐1‐ol (Nerol) | 106-25-2 | 1.46 | 154 | Ca. 2.76 (30◦C, EC A.8) | Information available in ECHA disseminated dossier | |
Block 2 | (E)‐3,7‐dimethylocta‐2,6‐dien‐1‐ol (Geraniol) | 106-24-1 | 5.43 | See Z-isomer above | 154 | 2.6 (25◦C, OECD TG 117) | Information available in ECHA disseminated dossier |
Block 3 | (2‐((3,7‐dimethyloct‐6‐en‐1‐yl)oxy)‐2‐methoxyethyl)benzene |
| 10.91 | 290 | 6.12 (Episuite) | - | |
Block 3 | (Z)‐(2‐((3,7‐dimethylocta‐2,6‐dien‐1‐yl)oxy)‐2‐methoxyethyl)benzene |
| 5.05 | 288 | 6.03 (Episuite) | - | |
Block 3 | (E)‐(2‐((3,7‐dimethylocta‐2,6‐dien‐1‐yl)oxy)‐2‐methoxyethyl)benzene |
| 19.10 | See Z-isomer above | 288 | 6.03 (Episuite) | - |
Block 4 | {2,2‐bis[(3,7‐dimethyloct‐6‐en‐1‐yl)oxy]ethyl}benzene |
| 6.30 | 414 | 10.31 (Episuite) | - | |
Block 4 | (E)‐(2‐((3,7‐dimethyloct‐6‐en‐1‐yl)oxy)‐2‐((3,7‐dimethylocta‐2,6‐dien‐1‐yl)oxy)ethyl)benzene |
| 17.19 | 412 | 10.22 (Episuite) | - | |
Block 4 | (2,2‐bis(((E)‐3,7‐dimethylocta‐2,6‐dien‐1‐yl)oxy)ethyl)benzene | 67634‐02‐0 | 11.57 | 410 | 10.14 (Episuite) | - |
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