Diammonium 5-(hexylsulfonyl)-2-{[3-methyl-2,7-dioxo-1-(3-sulfonatobenzoyl)-2,7-dihydro-3H-naphtho[1,2,3-de]heterocycle-6-yl]amino}benzenesulfonate

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

08 January 2009 to 26 February 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Date of inspection: 19 August 2008; Date of signature: 04 March 2009

Type of method:

other: Differential Scanning Calorimetry (DSC)

Test material

Test material information

Test material form:

solid: particulate/powder

Results and discussion

Melting / freezing point

Atm. press.:

102.8 kPa

Decomposition:

yes

Decomp. temp.:

516 K

Any other information on results incl. tables

Thermograms and thermographic data for Determinations 1 and 2 are shown in Figure 4.1 and Figure 4.2 in attachment 1 of the attachments section.

Applicant's summary and conclusion

Conclusions:

The test material has been determined to decompose from approximately 516 K at 102.8 kPa.

Executive summary:

Decomposed from approximately 516 K at 102.8 kPa. As the test material decomposed, no value for the melting temperature could be determined, by differential scanning calorimetry, using ASTM E537-86, Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008.