Registration Dossier
Registration Dossier
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EC number: 240-702-6 | CAS number: 16652-76-9
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 6.12.1995 - 22.12.1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1996
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- method according to Siwoloboff
Test material
- Reference substance name:
- O-benzyl-L-valine toluene-p-sulphonate
- EC Number:
- 240-702-6
- EC Name:
- O-benzyl-L-valine toluene-p-sulphonate
- Cas Number:
- 16652-76-9
- Molecular formula:
- C12H17NO2.C7H8O3S
- IUPAC Name:
- O-benzyl-L-valine toluene-p-sulphonate
Constituent 1
Results and discussion
Boiling point
- Boiling pt.:
- > 181 °C
- Atm. press.:
- 101.3 kPa
- Decomposition:
- yes
- Decomp. temp.:
- > 181 °C
Any other information on results incl. tables
The DSC (Differential scanning Calorimeter) analysis reveals a exothermic decomposition at temperatures higher than 181 °C. This decomposition explains the yellow to brownish black discoloration observed by the Siwoloboff method. Therefore the boiling point cannot be measured but a theoretical value can be calculated with the datas from the vapour pressure measurement.
The calculated boiling point from from vapour pressure measurement is 397 °C.
Applicant's summary and conclusion
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