2-hydroxy-3-(oleoyloxy)propyl 5-oxo-L-prolinate

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

June 13 - 14, 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

Pre-Test (visual inspection)

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Rheinland-Pfalz

Type of method:

method to determine freezing temperature

Melting / freezing pt.:

< -20 °C

Atm. press.:

ca. 1 013 hPa

Pre-Test

After evaluation the following values were recorded:

Pre-Test

Room Temperature 3.4 °C:

Yellow and viscous liquid. No visual changes, test item not flow able anymore, like wax.

Room Temperature -21.2 °C:

No visual changes, test item very viscous, light unclear but could be pressed. Like wax.

Room Temperature -80 °C:

No visual changes, test item was frozen and solid.

In a pre-test, the test item dermofeel® P-30 was visiually unchanged, the test item was very viscous and light unclear (like wax) but could be pressed at – 20°C. According to Regulation (EC) No 1907/2008 annex VII, column 2 of section 7.2, the determination of the melting- / freezing point does not need to be conducted below a lower limit of - 20 °C.

Therefore, no additional test was conducted and the melting point is stated as: < - 20 °C (< 253.15 K).

Description of key information

< -20 °C at ca. 1013 hPa (OECD 102)

Additional information

The melting point of the test substance was determined according to OECD Method 102 (determination of freezing temperature).