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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Water solubility

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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:
2007
Report date:
2007

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:
Test procedure according to method of Analytical Expert Group ETAD (Ecological and Toxicological Association of Dyes and Organic Pigment Manufacturer)
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-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutyramide]
EC Number:
226-939-8
EC Name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutyramide]
Cas Number:
5567-15-7
Molecular formula:
C36H32Cl4N6O8
IUPAC Name:
2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide]
Test material form:
solid: bulk

Results and discussion

Water solubility
Water solubility:
8.1 µg/L
Temp.:
23 °C
pH:
ca. 7
Details on results:
The value given refers to room temperature (23-24 °C, see above) and represents the mean from 3 determinations (sigma = 3.3). Individual values were: 4.8, 8.3 and 11.3 µg/L.

Applicant's summary and conclusion

Conclusions:

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

The water solubility of the test substance was determined using UV-vis spectrometry. The water solubility at 23-24 °C was 8.1 µg/L.