Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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:
2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed stuy according to company SOP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP
Principles of method if other than guideline:
Determination of the decomposition temperatue with DSC
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl 5-oxo-1-phenyl-2-pyrazoline-3-carboxylate
EC Number:
201-899-4
EC Name:
Ethyl 5-oxo-1-phenyl-2-pyrazoline-3-carboxylate
Cas Number:
89-33-8
Molecular formula:
C12H12N2O3
IUPAC Name:
ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate
Details on test material:
Purity: 98.8 %

Results and discussion

For thermal stability study

Test substance thermally stable:
no
Operating temperature
Operating temp.:
> 25 - < 450 °C
Remarks on result:
other: The product starts to decompose in the sealed vial at 202°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 decomposition temperature of the substance is 202°C.
Executive summary:

The thermal stabikity of the substance was determied by DSC. The product starts to decompose in the sealed vial at 202°C