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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
6 August to 21 Novemver 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to current test guidelines in accordance with GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes
Type of method:
other: differential scanning calorimetry (DSC)

Test material

Constituent 1
Chemical structure
Reference substance name:
1,6-hexanediyl-bis(2-(2-(1-ethylpentyl)-3-oxazolidinyl)ethyl)carbamate
EC Number:
411-700-4
EC Name:
1,6-hexanediyl-bis(2-(2-(1-ethylpentyl)-3-oxazolidinyl)ethyl)carbamate
Cas Number:
140921-24-0
Molecular formula:
C32H62N4O6
IUPAC Name:
2-[3-(heptan-3-yl)-1,2-oxazolidin-2-yl]ethyl N-{6-[({2-[3-(heptan-3-yl)-1,2-oxazolidin-2-yl]ethoxy}carbonyl)amino]hexyl}carbamate

Results and discussion

Melting / freezing point
Melting / freezing pt.:
-50 °C
Atm. press.:
101.325 kPa

Any other information on results incl. tables

Preliminary test

From 250 °C upwards the weight of the sample decreased significantly. At 294 °C the sample weight had decreased by 25%.

After the experiment, a brown residue remained in the sample container (original colour: pale yellow) and a light brown residue was observed on the lid of the sample container. The change of the colour indicated reaction and/or decomposition of the test substance.

Main study

During cooling, a glass transition was observed between -40 °C and -70 °C. During heating, a glass transition between -75 °C and -25 °C was observed. The inflection point of the glass transition (macroscopically equivalent to a melting point) of the test substance was -49.77 °C.This effect was followed by a broad endothermic effect starting at 225 °C. The latter was most likely obtained due to reaction and/or decomposition of the test substance. After the experiment a light brown residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test substance.

The second experiment was performed to determine the duplicate glass transition temperature of the test substance. Similar results to the first experiment were obtained. The inflection point of the glass transition was -50.20 °C. After the experiment, the sample appeared to have been unchanged, i.e. no decomposition and/or evaporation were observed.

Applicant's summary and conclusion

Conclusions:
The melting temperature (glass transition) of the test substance was -50 °C (223K).
Executive summary:

The melting temperature of 1,6-hexanediyl-bis(2-(2-(1-ethylpentyl)-3-oxazolidinyl)ethyl)carbamate was determined using DSC.

During cooling, a glass transition was observed between -40 °C and -70 °C. During heating, a glass transition between -75 °C and -25 °C was observed.

The melting temperature (glass transition) of the test substance was -50 °C (223K).