2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2003

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Basic data given: comparable to guidelines/standards

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2003

Report date:

2003

Materials and methods

Principles of method if other than guideline:

Differential thermal analysis (DTA)

Type of method:

thermal analysis

Test material

Test material information

Constituent 1

Reference substance name:

2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide

EC Number:

219-730-8

EC Name:

2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide

Cas Number:

2512-29-0

Molecular formula:

C17H16N4O4

IUPAC Name:

2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide

Test material form:

solid: nanoform, no surface treatment

Results and discussion

Melting / freezing point

Key result

Melting / freezing pt.:

257 ca. °C

Decomposition:

yes

Decomp. temp.:

261 ca. °C

Any other information on results incl. tables

The DTA shows an endothermal reaction with an onset at 256.53 °C (rounded value of 257 °C taken as melting point) and a peak at 257.94 °C.

Decomposition starts from the melting substance. The (exothermal) decomposition reaction shows an onset at 260.66 °C (rounded value of 261 °C taken as decomposition temperature) and a peak at 291.29 °C, the reaction energy of the decomposition being 1100 J/g.

Applicant's summary and conclusion

Conclusions:

Decomposition starts from the melting substance, with a melting point of 257 °C and a decomposition temperature of 261 °C.

Executive summary:

The DTA shows decomposition from the melting substance starting at 261 °C with a melting point of 257 °C.