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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)

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: ETAD Analytical expert group
Principles of method if other than guideline:
Determination of n-octanol solubility.
The 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.

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-[ethylenebis(oxyphenyl-2,1-eneazo)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxobutyramide
EC Number:
278-770-4
EC Name:
2,2'-[ethylenebis(oxyphenyl-2,1-eneazo)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxobutyramide
Cas Number:
77804-81-0
Molecular formula:
C36H32N10O8
IUPAC Name:
2,2'-[ethylenebis(oxyphenyl-2,1-eneazo)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxobutyramide
Test material form:
solid: bulk

Results and discussion

Solubility in organic solvents / fat solubility
Medium:
n-octanol
Solubility:
18.5 µg/L
Temp.:
25 °C
Remarks on result:
other: The determination of n-octanol solubility was conducted at ambient temperature (25-27 °C).
Details on results:
The value above represents the mean from 4 determinations (sigma=2.4). See below for indidividual results .

Any other information on results incl. tables

Individual results:

 

Extinction
(d = 10 cm)

µg/L

a1

0.008464

17.7

a2

0.008151

17.1

a3

0.008178

17.2

 a4

 0.010988

 22.1


Applicant's summary and conclusion

Conclusions:
The test substance has an n-octanol solubility of 18.5 µg/L.