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Physical & Chemical properties

Stability in organic solvents and identity of relevant degradation products

Administrative data

Endpoint:
stability in organic solvents and identity of relevant degradation products
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16 Mar 2007
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
according to company guideline, but limited documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
The test substance was intensively stirred in organic solvents for 72 h. Analytics by UV-vis spectrometry.

Test material

Constituent 1
Chemical structure
Reference substance name:
4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(p-tolyl)-3H-pyrazol-3-one]
EC Number:
239-898-6
EC Name:
4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(p-tolyl)-3H-pyrazol-3-one]
Cas Number:
15793-73-4
Molecular formula:
C34H28Cl2N8O2
IUPAC Name:
4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[5-methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one]
Test material form:
solid: nanoform

Results and discussion

Test substance stable:
yes

Any other information on results incl. tables

The test substance is stable and homogeneous for more than 72 hours in DMSO (0.1 and 50 mg/mL) and in 1,2-propylene glycol (0.1 and 50 mg/mL) at room temperature.

Applicant's summary and conclusion

Conclusions:
The test substance is stable and homogeneous for more than 72 hours in DMSO (0.1 and 50 mg/mL) and in 1,2-propylene glycol (0.1 and 50 mg/mL) at room temperature.
Executive summary:

The stability of the test substance in organic solvents was determined by UV-vis spectrometry.

The test substance is stable and homogeneous for more than 72 hours in DMSO (0.1 and 50 mg/mL) and in 1,2-propylene glycol (0.1 and 50 mg/mL) at room temperature.

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