Registration Dossier
Registration Dossier
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EC number: 269-389-4 | CAS number: 68227-78-1
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Remarks:
- Test procedure according to method of Analytical Expert Group ETAD (Ecological and Toxicological Association of Dyes and Organic Pigment Manufacturers).
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
- Principles of method if other than guideline:
- Determination of water solubility.
The analytical method for the determination is in agreement with the method that was agreed upon at the Analytical Experts Meeting of ETAD (Basel) on January 12, 2005. - Type of method:
- flask method
Test material
- Reference substance name:
- N-(5-chloro-2-methylphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide
- EC Number:
- 269-389-4
- EC Name:
- N-(5-chloro-2-methylphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide
- Cas Number:
- 68227-78-1
- Molecular formula:
- C32H25ClN4O4
- IUPAC Name:
- N-(5-chloro-2-methylphenyl)-3-hydroxy-4-{[2-methoxy-5-(phenylcarbamoyl)phenyl]diazenyl}-2-naphthamide
- Test material form:
- solid: nanoform, no surface treatment
Constituent 1
Results and discussion
Water solubility
- Key result
- Water solubility:
- 10 µg/L
- Temp.:
- 21 °C
- pH:
- ca. 6
- Remarks on result:
- other: The determination of water solubility was conducted at ambient temperature (21-22 °C)
- Details on results:
- The value above represents the mean from 2 determinations (sigma=1). See below for indidividual results.
Any other information on results incl. tables
Individual results:
| Absorption (d = 10 cm) | µg/L | pH |
a1 | 0.0079 | 11 | 6.1 |
a2 | 0.0064 | 9 | 5.9 |
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
The test substance has a water solubility of 10 µg/L. - Executive summary:
The water solubility was determined by UV-Vis analysis of the dissolved test substance amount in 30 mL water according to the method that was agreed upon at the Analytical Experts Meeting of ETAD (Basel) on January 12, 2005.
The test substance has a water solubility of 10 µg/L (21 -22 °C).
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