2-hydroxy-N-((2S,3S,4R)-1,3,4-trihydroxyoctadecan-2-yl)octadecanamide

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018-10-12 to 2018-10-15

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2019

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

adopted on 27 July 1995

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

Council Regulation (EC) No 440/2008; May 30th 2008

GLP compliance:

no

Type of method:

thermal analysis

Test material

Test material information

Constituent 1

Reference substance name:

2-hydroxy-N-((2S,3S,4R)-1,3,4-trihydroxyoctadecan-2-yl)octadecanamide

Cas Number:

212070-45-6

Molecular formula:

C36H73NO5

IUPAC Name:

2-hydroxy-N-((2S,3S,4R)-1,3,4-trihydroxyoctadecan-2-yl)octadecanamide

Test material form:

solid: crystalline

Specific details on test material used for the study:

The physical state of the test item at 20 °C and 101.3 kPa is a white, crystalline solid. All analyses included in this report have been performed with the batch E818401077, which passed the quality control measurements without any irregularity previously. All specifications were met.

Results and discussion

Melting / freezing point

Key result

Melting / freezing pt.:

>= 124 - <= 149 °C

Any other information on results incl. tables

Run 1

On-set (beginning) temperature: 128 °C

40 % Transmission: 134 °C

Clear point: 149 °C

Run 2

On-set (beginning) temperature: 128 °C

40 % Transmission: 134 °C

Clear point: 149 °C

The difference between the temperature at the beginning and at the final stage of melting is outside the limits of the accuracy, therefore both temperatures are reported.

Experimental conditions:

Start temperature 120 °C

Heating rate 1 °C

Result:

The on-set temperature was 128 °C. The clear point was reached at 149 °C. Melting range : 128 °C -149 °C.

Applicant's summary and conclusion

Conclusions:

Melting range: 128 °C -149 °C.

Executive summary:

The melting point/range of the test item was determined using a melt microscope according to the OECD Test Guideline 102 [adopted on 27 July 1995] and EU test method A.1 [“Melting/freezing temperature”].

The melting point was determined according DIN EN 3143 (previous version. DIN 53736) using a melting point system (MP80, METTLER Toledo) in two independently experiments. The test item was homogenized by pestling.

The on-set temperature I 128 °C. The clear point was reached at 149 °C. Melting range : 128 °C -149 °C.