Registration Dossier
Registration Dossier
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EC number: 276-940-2 | CAS number: 72846-00-5
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-08-07 - 2018-08-23
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- 1-benzyl-5-phenylbarbituric acid
- EC Number:
- 276-940-2
- EC Name:
- 1-benzyl-5-phenylbarbituric acid
- Cas Number:
- 72846-00-5
- Molecular formula:
- C17H14N2O3
- IUPAC Name:
- 1-benzyl-5-phenylpyrimidine-2,4,6(1H,3H,5H)-trione
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- Molecular Formula : C17H14N2O3
Molecular Weight : 294.3
Physical Appearance : White powder
CAS No. : 72846-00-5
Batch Number : 170240
Purity : 99.5%
Results and discussion
Boiling point
- Key result
- Boiling pt.:
- 342.8 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
Applicant's summary and conclusion
- Conclusions:
- Based on the results obtained in the study it is concluded that the boiling point of 1-Benzyl-5-
phenylbarbituric acid (BPBA) is 342.80 °C at 92.23 kPa atmospheric pressure. - Executive summary:
The study, entitled "Determination of Boiling Point / Boiling Range of 1-Benzyl-5-phenylbarbituric
acid (BPBA)" was performed in compliance with the Study Plan No. P/PCP2728/BP/18, which
incorporated the recommendations made in the guideline OECD 103.
The boiling point of test item was determined by differential scanning calorimetry. The performance
of the instrument was checked before start of test using Indium for temperature (onset) and heat
flow accuracy. The performance of the instrument was found satisfactory.
Samples of the test item and a reference material are subjected to same temperature programme.
When the sample undergoes transition involving a change in enthalpy (endothermic reaction on
boiling), that change was indicated by a departure from baseline of heat flow record. The boiling
point was determined with the help of thermogram. The midpoint of the endothermic peak was
considered as boiling point of test item. Atmospheric pressure (kPa) was recorded during the
determination of boiling point. Duplicate determinations were made and mean of two samples was
taken as boiling point of test item.
The boiling points of two samples of test item were found to be 342.41ºC and 343.19 ºC
respectively. The boiling points of two samples of test item were found within the accuracy of
Differential Scanning Calorimetric Method ( ± 2.0 K ). The mean boiling point was found to be
342.80 ºC.
Based on the results obtained in the study, the Boiling Point of 1-Benzyl-5-phenylbarbituric acid
(BPBA) is found to be 342.80 °C at 92.23 kPa atmospheric pressure.
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