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Physical & Chemical properties

Solubility in organic solvents / fat solubility

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Administrative data

Endpoint:
solubility in organic solvents / fat solubility
Type of information:
experimental study
Adequacy of study:
supporting study
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 Manufacturer)
Cross-reference
Reason / purpose for cross-reference:
reference to same study
Reference
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
Reason / purpose for cross-reference:
reference to same study
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
Water solubility:
25 µg/L
Temp.:
24 °C
pH:
ca. 7

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
Conclusions:
the test substance is practically insoluble in water (< 0.1 mg/L)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Analytical Expert Group ETAD

Test material

Constituent 1
Chemical structure
Reference substance name:
2,20-dichloro-13,31-diethyl-4,22-dioxa-13,18,31,36-tetraazanonacyclo[19.15.0.03,19.05,17.06,14.07,12.023,25.024,32.025,30]hexatriaconta-1(36),2,5,7,9,11,14,16,18,20,23,25,27,29,32,34-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[19.15.0.03,19.05,17.06,14.07,12.023,25.024,32.025,30]hexatriaconta-1(36),2,5,7,9,11,14,16,18,20,23,25,27,29,32,34-hexadecaene
Test material form:
solid: nanoform

Results and discussion

Solubility in organic solvents / fat solubility
Medium:
n-octanol
Solubility:
0.33 mg/L
Temp.:
24 °C
Test substance stable:
yes

Applicant's summary and conclusion

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