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Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21 Oct 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 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:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
Determination of water solubility.
The analytical 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:
4-[(4-chloro-2-nitrophenyl)azo]-3-hydroxy-N-(2-methylphenyl)naphthalene-2-carboxamide
EC Number:
229-314-8
EC Name:
4-[(4-chloro-2-nitrophenyl)azo]-3-hydroxy-N-(2-methylphenyl)naphthalene-2-carboxamide
Cas Number:
6471-50-7
Molecular formula:
C24H17ClN4O4
IUPAC Name:
4-[(4-chloro-2-nitrophenyl)diazenyl]-3-hydroxy-N-(2-methylphenyl)-2-naphthamide

Results and discussion

Water solubility
Water solubility:
12.6 µg/L
Temp.:
22 °C
pH:
6.4
Remarks on result:
other: The determination of water solubility was conducted at ambient temperature (22-23 °C)
Details on results:
sigma = 4.5

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
The test substance has a water solubility of 12.6 µg/L.
Executive summary:

The water solubility was determined by UV-Vis analysis of the dissolved test substance amount in water according to the method that was agreed upon at the Analytical Experts Meeting of ETAD (Basel) on January 12, 2005.

The test substance has a water solubility of 12.6 µg/L (22-23 °C).

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