Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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

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:
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 octanol 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:
2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide
EC Number:
219-730-8
EC Name:
2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide
Cas Number:
2512-29-0
Molecular formula:
C17H16N4O4
IUPAC Name:
2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide
Test material form:
solid: nanoform, no surface treatment

Results and discussion

Solubility in organic solvents / fat solubility
Key result
Medium:
n-octanol
Solubility:
14.9 mg/L
Temp.:
22 °C
Remarks on result:
other: The determination of octanol solubility was conducted at ambient temperature (22-23 °C).
Details on results:
The value above represents the mean from 3 determinations (sigma=0.2). See below for indidividual results.

Any other information on results incl. tables

Individual results:

 

Absorption
(d = 1 cm)

mg/L

a1

0.445

14.7

a2

0.448

14.8

a3

0.456

15.1


Applicant's summary and conclusion

Conclusions:
The test substance has an octanol solubility of 14.9 mg/L.
Executive summary:

The octanol solubility was determined by UV-Vis analysis of the dissolved test substance amount in 30 mL octanol according to the method that was agreed upon at the Analytical Experts Meeting of ETAD (Basel) on January 12, 2005. The test substance has an octanol solubility of 14.9 mg/L (22 -23 °C).