1-(bis(2-(1,3-dimethylbutylideneamino)ethyl)amino)-3-phenoxypropan-2-ol

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10 July 2018 to 09 August 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

1-(bis(2-(1,3-dimethylbutylideneamino)ethyl)amino)-3-phenoxypropan-2-ol

EC Number:

271-340-7

EC Name:

1-(bis(2-(1,3-dimethylbutylideneamino)ethyl)amino)-3-phenoxypropan-2-ol

Cas Number:

68541-07-1

Molecular formula:

C25H43N3O2

IUPAC Name:

1-(bis(2-(1,3-dimethylbutylideneamino)ethyl)amino)-3-phenoxypropan-2-ol

Test material form:

liquid

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Sponsor and UL18401660
- Expiration date of the lot/batch: 15 April 2020
- Purity test date: 30 May 2018

Results and discussion

Melting / freezing point

Key result

Remarks on result:

not determinable

Remarks:

No melting point was determined. A glass transition of the test item was observed at -55.4°C (217.7K).

Any other information on results incl. tables

The DSC curve obtained with Experiment 1 is shown in Figure 2. During cooling a glass transition was observed between -50°C and -90°C (results are archived in the raw data). During heating a glass transition was observed between -75°C and -25°C. Between 0°C and 100°C a broad endothermic effect was observed directly followed by a exothermic effect starting at 100°C. The inflection point of the glass transition was -56.091°C. The endothermic effect was most likely obtained due to evaporation of impurities. The exothermic effect was probably obtained due to reaction and/or decomposition of the test item.

After the experiment, a dark brown molten residue remained in the sample container (original colour: light yellow). The change of the colour indicated reaction and/or decomposition of the test item. Based on this visual observation, it was found that the test item had molten and the change of the colour demonstrated reaction and/or decomposition of the test item.

In order to investigate the endothermic effect, Experiment 2 was stopped directly after the endothermic effect. Figure 3 shows the DSC curve obtained. The inflection point was -54.720°C. After the experiment, a light yellow molten residue remained in the sample container (original colour: light yellow). The test item was unchanged. Based on this result the endothermic effect was probably due to the evaporation of impurities.

The glass transition was determined as the mean glass transition of Experiment 1 (-56.091°C) and Experiment 2 (-54.720°C).

Applicant's summary and conclusion

Conclusions:

The melting temperature of 1-(bis(2-(1,3-dimethylbutylideneamino) ethyl)amino)-3-phenoxypropan-2-ol were determined by DSC.
No melting point was determined. A glass transition of the test item was observed at -55.4°C (217.7K).