N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-08-22

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

2017-02-28

Type of method:

differential scanning calorimetry

Atm. press.:

1 008 hPa

Decomposition:

yes

Decomp. temp.:

>= 300 °C

In the temperature range of 180 °C – 210 °C an endothermic effect (melting) was observed. No further endothermic effects was observed up to the decomposition of the test item in the temperature range of 300 °C – 350 °C, with a mean decomposition energy of approx. 180 J/g. No further thermic effects could be observed up to the maximum measured temperature of 500 °C.

Results of the DSC-measurements

No.	Sample weight / mg	Onset of Effect / °C	Range of effect / °C	Weight loss / mg	Atmospheric pressure / hPa
1	9.18	194.65 ---	180 – 210 (endo) 300 – 350 (exo)	4.27	1007.5
2	10.45	194.10 ---	180 – 210 (endo) 300 – 340 (exo)	5.15	1007.5

During the heating phase a distinct endothermic effect was observed in the temperature range of 180 – 210 °C, which can be assigned to the melting of the test item. Since no further endothermic effects could be observed up to the decomposition of the test item started at 300 °C, it can be stated that the test item has no boiling point up to its decomposition.

Conclusions:

The test item N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide has no boiling point up to its decomposition starting at a temperature of 300 °C at atmospheric pressure (1008 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995).

Description of key information

The test item N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide has no boiling point up to its decomposition starting at a temperature of 300 °C at atmospheric pressure (1008 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995).