Registration Dossier
Registration Dossier
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EC number: 295-619-8 | CAS number: 92113-15-0
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- The testing laboratory is GLP compliant and the test was carried out according to the principles of GLP. An internal standard operating procedure was followed for the direct scanning calorimetry tests.
- Principles of method if other than guideline:
- Date 02/10/2017
SOP Reference CTL SOP 320
Test System DSC System 1
Test Filename DSC4028001957A
Crucible Type Gold-lined steel (high pressure, sealed)
Sample Preparation Tested as received
Start Temperature -40°C
Trip Temperature 400°C
Ramp Rate 4 K.min-1
Test Atmosphere Air
Sample Mass 4.7 mg - GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- α-Bitter acids, hop, hydrogenated, isomerized
- EC Number:
- 295-619-8
- EC Name:
- α-Bitter acids, hop, hydrogenated, isomerized
- Cas Number:
- 92113-15-0
- IUPAC Name:
- α-Bitter acids, hop, hydrogenated, isomerized
Constituent 1
- Specific details on test material used for the study:
- Batch no. EXP 6. Contains 75.81% w/w potassium salt of hop tetrahydroiso-alpha acids.
Results and discussion
Melting / freezing point
- Key result
- Remarks on result:
- not determinable
- Remarks:
- No firm melting point noted on DSC, as expected for a plant-derived UVCB material
Any other information on results incl. tables
Notes from the test report: “The sample was observed to undergo an endothermic event from -22.0°C (4.2 J.g-1). An exothermic event was then observed to commence from 125.1°C which had a heat of decomposition of -262.4 J.g-1. No further significant energetic events were noted up to 400°C.”
The DSC plot is attached – see “Illustration – picture/graph”
Applicant's summary and conclusion
- Conclusions:
- Melting point was not distinguishable, as discussed in detail in "Overall Remarks".
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