Registration Dossier
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EC number: 202-658-6 | CAS number: 98-33-9
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:
- 2017-02-27 – 2017-02-27
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Experimental result performed using standard methods of analysis
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Principles of method if other than guideline:
- The melting point determination of chemical 3-methylsulphanilic acid (CAS No. 98-33-9 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.
- GLP compliance:
- no
- Type of method:
- other: standard laboratory method
- Specific details on test material used for the study:
- - Name of test material:3-methylsulphanilic acid
- Molecular formula: C7H9NO3S
- Molecular weight: 187.218 g/mol
- Smiles notation: S(c1cc(c(N)cc1)C)(O)(=O)=O
- InChl: 1S/C7H9NO3S/c1-5-4-6(12(9,10)11)2-3-7(5)8/h2-4H,8H2,1H3,(H,9,10,11)
- Substance type: Organic
- Physical state: Solid - Key result
- Atm. press.:
- 978.5 hPa
- Decomposition:
- yes
- Decomp. temp.:
- >= 306.7 - <= 318.2
- Sublimation:
- no
- Remarks on result:
- other: the chemical decomposes without melting
- Conclusions:
- The melting point determination of 3-methylsulphanilic acid (CAS No. 98-33-9) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determined to be 306.7°C -318.2°C at 978.5hPa.
- Executive summary:
The melting point determination of 3-methylsulphanilic acid (CAS No. 98-33-9) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determined to be 306.7°C -318.2°C at 978.5hPa.
Reference
Description of key information
The melting point determination of 3-methylsulphanilic acid (CAS No. 98-33-9) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determined to be 306.7°C -318.2°C at 978.5 hPa.
Key value for chemical safety assessment
Additional information
The melting point determination of 3-methylsulphanilic acid (CAS No. 98-33-9) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determined to be 306.7°C -318.2°C at 978.5hPa.
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