Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
stability: thermal, sunlight, metals, other
Remarks:
Migrated from section 'Stability: thermal, sunlight, metals'
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well peformed study following acknowledged procedures

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP: DSC
Deviations:
not specified
Principles of method if other than guideline:
DSC; apparatus: Mettler Toledo, DSC 821e
25 - 400 °C, 3 K/min, sealed glass vial in air
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
m-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid
EC Number:
204-303-0
EC Name:
m-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid
Cas Number:
119-17-5
Molecular formula:
C10H10N2O4S
IUPAC Name:
3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzene-1-sulfonic acid

Results and discussion

For thermal stability study

Operating temperature
Operating temp.:
> 25 - < 400 °C
Remarks on result:
other: The substance decomposes at 198 °C
Sublimation:
no
Transformation products:
not measured

For study on stability to sunlight

Test substance stable to sunlight:
not determined

For study on stability to metals

Test substance stable to metals / metal ions:
not determined

Applicant's summary and conclusion

Conclusions:
The substance starts to decompose at 198 °C (DSC, sealed vial in air)