Registration Dossier
Registration Dossier
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EC number: 202-577-6 | CAS number: 97-39-2
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning calorimetry
- Melting / freezing pt.:
- ca. 177.5 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of DOTG PD (1,3-di-o-tolylguanidine) is determined to be about 177.5°C
- Executive summary:
A study was performed according OECD 102 in order to investigate the melting point of the test substance DOTG (1,3- di-o-tolylguanidine).
The melting point of DOTG is determined to be about 177.5 °C
Reference
Description of key information
MP of DOTG (1,3-di-o-tolylguanidine) is about 175-179°C
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 177.5 °C
Additional information
- According to the software MPBWIN, the substance 1,3-di-o-tolylguanidine was predicted to have a melting of 142.2°C +/-50°C (i.e. 92.2 -192.2°C)
- According to 5 publications on the Beilstein, melting point of 1,3 -di-o-tolylguanidine is about 175 -179°C.
- According to 7 publications found in ACS database, melting point of 1,3-di-o-tolylguanidine is about 175-185°C.
- According to Handbook of Chemistry and Physics, melting point of 1,3-di-o-tolylguanidine is about 179°C.
- According to CERI (2004), melting point of 1,3-di-o-tolylguanidine is ca 174.4-176°C.
- According to the Knovel Critical tables (2nd edition), melting point of DOTG (1,3-di-o-tolylguanidine) is about 176-179°C.
- According to the Yaw's Handbook of Physical Properties for Hydrocarbons and Chemicals, melting point of DOTG (1,3-di-o-tolylguanidine) is about 452.15K- i.e. 179°C.
- According to the GSBL data, melting point of DOTG is 179°C
- And according the Jean-Claude bradley Open melting Point Library, melting point of DOTG is about 177-179°C.
Different types of analyses based on a QSAR calculation, publication collection and finally analysis at MLPC lab.
In publications, following values are found:
And finally a study was performed at central laboratory of MLPC (Rion-des-Landes - France) to investigate the melting point of the test substance EKALAND DOTG PD (1,3- di-o-tolylguanidine). The study was conducted according to OECD Test Guideline 102. The melting point of DOTG is determined to be about 177.5 °C
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