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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:
comparable to guideline study with acceptable restrictions
Remarks:
test procedure similar to OECD 105

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006
Report date:
2006

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

Constituent 1
Chemical structure
Reference substance name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]
EC Number:
226-789-3
EC Name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]
Cas Number:
5468-75-7
Molecular formula:
C34H30Cl2N6O4
IUPAC Name:
2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2-methylphenyl)-3-oxobutanamide]
Test material form:
solid: nanoform

Results and discussion

Water solubility
Water solubility:
0.8 µg/L
Temp.:
24 °C
pH:
ca. 7
Details on results:
The value given refers to room temperature (24-25 °C, see above) and represents the mean from 4 determinations (sigma = 0.4). Individual values were: 0.3, 0.5, 1.0 and 1.2 µg/L.

Applicant's summary and conclusion

Conclusions:

he test substance is practically insoluble in water (< 0.1 mg/L)
Executive summary:

The water solubility at 24-25 °C was 0.8 µg/L.