3-methyl-1-p-tolyl-5-pyrazolone

Melting point / freezing point

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

Test material information

Constituent 1

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:

3-methyl-1-p-tolyl-5-pyrazolone

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.