Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13.11.2017 - 15.11.2017
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 guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Version / remarks:
1998
GLP compliance:
yes (incl. QA statement)
Remarks:
consilab, Gesellschaft für Anlagensicherkeit mbH, Industriepark Höchst, G830/G840, 65926 Frankfurt am Main (Germany)
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Reference substance name:
L-Threonine, N-coco acyl derivs., monosodium salts
Cas Number:
90583-79-2
Molecular formula:
n/a
IUPAC Name:
L-Threonine, N-coco acyl derivs., monosodium salts
Test material form:
solid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Ajinomoto Co., Inc., 15-1, Kyobashi 1-chome, Chuo-ku, Tokyo, 104-8315, Japan//Batch No.: 160329
- Expiration date of the lot/batch: 29.03.2019
- Purity test date: 09.06.2016

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
149.8 °C
Atm. press.:
1 003 hPa
Decomposition:
no

Any other information on results incl. tables

The evaluation of the data obtained by DSC measurements was performed using the software STARe.

Applicant's summary and conclusion

Conclusions:
The test item melts at 149.8°C at atmospheric pressure.
Executive summary:

The melting point of the test item was investigated in a study conducted according OECD Guideline 102 (Melting point / Melting Range; 1995) and EU Method A.1 (Melting / Freezing Temperature; 2008) using DSC and capillary measurements. Based on DSC measurements, the melting point was determined to be 149.8°C at atmospheric pressure (1003 hPa). The results of the DSC measurements were confirmed by the capillary method.

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