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Physical & Chemical properties

Solubility in organic solvents / fat solubility

Administrative data

Endpoint:
solubility in organic solvents / fat solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed study according to guideline developed and agreed upon by the ETAD in january 2005 for colorants with very low solubility

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: method developed by ETAD
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Hydrogen hydroxy[2-hydroxy-3-[(2-hydroxy-3-nitrobenzylidene)amino]-5-nitrobenzenesulphonato(3-)]chromate(1-), compound with 3-[(2-ethylhexyl)oxy]propylamine (1:1)
EC Number:
287-267-9
EC Name:
Hydrogen hydroxy[2-hydroxy-3-[(2-hydroxy-3-nitrobenzylidene)amino]-5-nitrobenzenesulphonato(3-)]chromate(1-), compound with 3-[(2-ethylhexyl)oxy]propylamine (1:1)
Cas Number:
85455-32-9
Molecular formula:
C13H7CrN3O10S.C11H25NO.H
IUPAC Name:
3-[(2-ethylhexyl)oxy]propan-1-aminium 1-hydroxy-4,13-dinitro-2,17-dioxa-10-aza-1-chromatetracyclo[8.7.0.0³,⁸.0¹¹,¹⁶]heptadeca-3(8),4,6,11,13,15-hexaene-15-sulfonate

Results and discussion

Solubility in organic solvents / fat solubility
Medium:
n-octanol
Solubility:
551 mg/L
Temp.:
23 °C
Test substance stable:
yes
Details on results:
The determination was repeated three times and the average value was caöculated from the individual results.
Individual results:
Absorption Solubility
(d = 1 cm n-octanol
dilution 1:100) mg/l
a1 0.133 471
a2 0.161 569
a3 0.173 613

Average: 551 mg/L

Applicant's summary and conclusion

Conclusions:
The solubility of the substance in n-octanol at 23°C is 551 mg/L
Executive summary:

The n-octanol solubility of the substance was determined 3 times according to the method developed by the ETAD at 23°C. The average of the results was 551 mg/L.