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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: according to valid method (DSC)

Data source

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

Materials and methods

Principles of method if other than guideline:
Differential Scanning Calorimetry
GLP compliance:
not specified
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
3-methyl-1-p-tolyl-5-pyrazolone
EC Number:
201-708-4
EC Name:
3-methyl-1-p-tolyl-5-pyrazolone
Cas Number:
86-92-0
Molecular formula:
C11H12N2O
IUPAC Name:
5-methyl-2-(4-methylphenyl)-1,2-dihydro-3H-pyrazol-3-one

Results and discussion

Melting / freezing point
Melting / freezing pt.:
133 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Decomp. temp.:
>= 261 °C
Remarks on result:
other: The product starts to decompose in the sealed vial at 261°C with a mean energy of 162 J/g

Applicant's summary and conclusion

Conclusions:
The substance melts at 133°C and starts to decompose at 261°C with a mean energy of 162 J/g. A Differential Scanning Calorimeter was used for testing.
Executive summary:

The substance melts at 133°C and starts to decompose at 261°C with a mean energy of 162 J/g. A Differential Scanning Calorimeter was used for testing.

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