Registration Dossier
Registration Dossier
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EC number: 606-790-9 | CAS number: 215247-95-3
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- test procedure similar to OECD 105
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- other: estimated visually, not measured
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: according to company guideliine
- Principles of method if other than guideline:
- Estimation of solubility by preparing different concentrations of solutions and visual check of remaining solid at the bottom of the solution.
- GLP compliance:
- not specified
- Medium:
- DMSO
- Solubility:
- < 1 mg/L
- Temp.:
- 20 °C
- Test substance stable:
- yes
- Executive summary:
Applying the method described above the estimated solubility of C.I. Pigment Violet 23 in DMSO is < 1 mg/L at room temperature.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- yes
- Remarks:
- modified taking into account the very low water solubility of the test substance
- Principles of method if other than guideline:
- The method for the determination and analytical investigation is according to 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:
- 2,20-dichloro-13,31-diethyl-4,22-dioxa-13,18,31,36-tetraazanonacyclo[19.15.0.0³,¹⁹.0⁵,¹⁷.0⁶,¹⁴.0⁷,¹².0²³,³⁵.0²⁴,³².0²⁵,³⁰]hexatriaconta-1(36),2,5,7(12),8,10,14,16,18,20,23(35),24(32),25,27,29,33-hexadecaene
- EC Number:
- 606-790-9
- Cas Number:
- 215247-95-3
- Molecular formula:
- C34H22Cl2N4O2
- IUPAC Name:
- 2,20-dichloro-13,31-diethyl-4,22-dioxa-13,18,31,36-tetraazanonacyclo[19.15.0.0³,¹⁹.0⁵,¹⁷.0⁶,¹⁴.0⁷,¹².0²³,³⁵.0²⁴,³².0²⁵,³⁰]hexatriaconta-1(36),2,5,7(12),8,10,14,16,18,20,23(35),24(32),25,27,29,33-hexadecaene
- Test material form:
- solid: nanoform
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- 25 µg/L
- Temp.:
- 24 °C
- pH:
- ca. 7
Any other information on results incl. tables
The solubility of C.I. Pigment Violet 23 in water at ambient temperature, determined under the conditions as mentioned above, is 25 µg per liter (mean, n = 4, sigma = 14).
Table 1: Individual results
| Absorption (d = 10 cm) | µg/L | |
| a1 | 0.001399 | 14 |
| a2 | 0.001486 | 15 |
| a3 | 0.003358 | 28 |
| a4 | 0.005701 | 44 |
Applicant's summary and conclusion
- Conclusions:
- the test substance is practically insoluble in water (< 0.1 mg/L)
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