Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
04 june 2003 - 04 July 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in 2003 according to ASTM E537-86, Method A1 of the Commission Directive 92/69/EEC and in accordance with GLP. Study material is well characterized.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Commission Directive 92/69/EEC, A1 (differential scanning calorimetry method).
Deviations:
no
GLP compliance:
yes
Type of method:
thermal analysis
Remarks:
Differential Scanning Calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
445-910-2
EC Name:
-
Cas Number:
1388152-30-4
Molecular formula:
Hill formula: C24 H32 N2 O7 Si CAS formula: C15 H20 O3 Si . C9 H12 N2 O4
IUPAC Name:
(1R,2R)-1,3-Dihydroxy-1-(4-nitrophenyl)propyl-2-ammonium (1R, 5S)-5-(dimethylphenylsilyl)-2-(hydroxymethyl)cyclopent-2-ene-1-carboxylate

Results and discussion

Melting / freezing point
Melting / freezing pt.:
>= 407 - <= 424 K
Atm. press.:
ca. 101.3 kPa
Remarks on result:
other: Measured at atmospheric pressure

Any other information on results incl. tables

Determination #1

 Thermal event Interpretation Temperature
oC  K
Endotherm  Lossof volatiles/water   105.1 378 
Double endotherm   Melting range 134.1 - 151.2  407 - 424 

Determination #2

 Thermal event Interpretation Temperature
oC  K
Endotherm  Lossof volatiles/water   105.9 379 
Double endotherm   Melting range 133.7 - 151.0  407 - 424 

Applicant's summary and conclusion

Conclusions:
The melting/freezing temperature of the test material has been determined to be 407 to 424 +/- 0.5 K
Executive summary:

The melting/freezing temperature of the test material has been determined by DSC to be 407 to 424 +/- 0.5 K