Registration Dossier
Registration Dossier
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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.
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EC number: 201-248-4 | CAS number: 80-08-0
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:
- 2013
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Guideline:
- other: not indicated
- Principles of method if other than guideline:
- not indicated
- GLP compliance:
- no
- Type of method:
- capillary method
- Melting / freezing pt.:
- >= 175 - <= 176 °C
- Atm. press.:
- ca. 1 atm
- Remarks on result:
- other: https://pubchem.ncbi.nlm.nih.gov/compound/Dapsone#section=Melting-Point
- Conclusions:
- No fully GLP or guideline study is available, however peer reviewed publication states the melting point is 175-176 oC at atmospheric pressure.
Reference
Description of key information
No guideline GLP study is available, however published data is available from the Merck index Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996., p. 478].
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 175 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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