Niflumic acid
- Formula: C13H9F3N2O2
- Molecular weight: 282.2180
- IUPAC Standard InChIKey: JZFPYUNJRRFVQU-UHFFFAOYSA-N
- CAS Registry Number: 4394-00-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: 3-Pyridinecarboxylic acid, 2-[[3-(trifluoromethyl)phenyl]amino]-; Nicotinic acid, 2-(α,α,α-trifluoro-m-toluidino)-; Actol; Actol, analgesic; Flogovital; Forenol; Landruma; Nifluminic acid; Nifluril; UP 83; 2-[3-(Trifluoromethyl)anilino]nicotinic acid; Acide niflumique; Acido niflumico; 2-(3-(Trifluoromethyl)-phenyl)aminonicotinic acid; 2-[3-(Trifluoromethyl)anilino]-3-pyridinecarboxylic acid; Niflamol; 2-[3-(Trifluoromethyl)anilino]nicotinic acid (niflumic acid)
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Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 476.0 | K | N/A | Pinvidic, Gonthier-Vassal, et al., 1989 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 107.5 | kJ/mol | S-F | Perlovich, Surov, et al., 2007 | AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 130.2 ± 0.8 | kJ/mol | GS | Perlovich, Surov, et al., 2007 | Based on data from 355. to 396. K. See also Surov, Terekhova, et al., 2009.; AC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
127.8 ± 0.8 | 376. | GS | Perlovich, Surov, et al., 2007 | Based on data from 355. to 396. K. See also Surov, Terekhova, et al., 2009.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
36.5 | 478. | DSC | Perlovich, Surov, et al., 2007 | See also Surov, Terekhova, et al., 2009.; AC |
35.7 | 476.4 | DSC | Romero, Bustamante, et al., 2004 | AC |
32.73 | 477.2 | N/A | Bustamante, Peña, et al., 1998 | AC |
38.0 | 476. | N/A | Pinvidic, Gonthier-Vassal, et al., 1989 | AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pinvidic, Gonthier-Vassal, et al., 1989
Pinvidic, J.J.; Gonthier-Vassal, A.; Szwarc, H.; Ceolin, R.; Toffoli, P.; Teulon, J.M.; Guechot, C.,
Niflumic acid-morniflumate phase diagram: 1. Study of the components,
Thermochim. Acta, 1989, 153, 37-45. [all data]
Perlovich, Surov, et al., 2007
Perlovich, German L.; Surov, Artem O.; Bauer-Brandl, Annette,
Thermodynamic properties of flufenamic and niflumic acids---Specific and non-specific interactions in solution and in crystal lattices, mechanism of solvation, partitioning and distribution,
Journal of Pharmaceutical and Biomedical Analysis, 2007, 45, 4, 679-687, https://doi.org/10.1016/j.jpba.2007.01.039
. [all data]
Surov, Terekhova, et al., 2009
Surov, Artem O.; Terekhova, Irina V.; Bauer-Brandl, Annette; Perlovich, German L.,
Thermodynamic and Structural Aspects of Some Fenamate Molecular Crystals,
Crystal Growth & Design, 2009, 9, 7, 3265-3272, https://doi.org/10.1021/cg900002q
. [all data]
Romero, Bustamante, et al., 2004
Romero, S.; Bustamante, P.; Escalera, B.; Cirri, M.; Mura, P.,
Characterization of the solid phases of paracetamol and fenamates at equilibrium in saturated solutions,
Journal of Thermal Analysis and Calorimetry, 2004, 77, 2, 541-554, https://doi.org/10.1023/B:JTAN.0000038993.61782.ba
. [all data]
Bustamante, Peña, et al., 1998
Bustamante, P.; Peña, M.A.; Barra, J.,
Partial solubility parameters of piroxicam and niflumic acid,
International Journal of Pharmaceutics, 1998, 174, 1-2, 141-150, https://doi.org/10.1016/S0378-5173(98)00263-4
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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