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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
data is from handbooks, authoritative and modelling databases
Principles of method if other than guideline:
To estimate the octanol water partition coefficient of C.I Solvent Yellow 14
GLP compliance:
not specified
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Name of test material (as cited in study report): C.I Solvent Yellow 14
Molecular formula: C16H12N2O
Molecular weight: 248.284 g/mol
Smiles notation: c12c(\N=N\c3ccccc3)c(ccc1cccc2)O
InChI: 1S/C16H12N2O/c1915111012645914(12)16(15)1817137213813/h111,19H/b1817+
Physical State: Solid
Substance type: Organic
Key result
Type:
log Pow
Partition coefficient:
5.51
Remarks on result:
other: The substance is hydrophobic in nature
Conclusions:
The estimated LogPow of 1-phenylazo-2-naphthol was 5.51.
Executive summary:

Data from handbooks and various modeling, authoritative databases suggests that the estimated LogPow of 1-phenylazo-2-naphthol was 5.51. This value indicates that 1-phenylazo-2-naphthol is hydrophobic in nature, which is also supported by its low solubility in water.

Description of key information

Data from handbooks and various modeling, authoritative databases suggests that the estimated LogPow of 1-phenylazo-2-naphthol was 5.51. This value indicates that 1-phenylazo-2-naphthol is hydrophobic in nature, which is also supported by its low solubility in water.

Key value for chemical safety assessment

Log Kow (Log Pow):
5.51

Additional information

Data from handbooks and various modeling, authoritative databases suggests that the estimated LogPow of 1-phenylazo-2-naphthol was 5.51. This value indicates that 1-phenylazo-2-naphthol is hydrophobic in nature, which is also supported by its low solubility in water.