Ethanesulfonic acid
Ethanesulfonic acid (esylic acid) is a sulfonic acid with the chemical formula CH3CH2SO3H. The conjugate base is known as ethanesulfonate or, when used in pharmaceutical formulations, as esilate. It is a colorless liquid.[2]
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| Names | |||
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| IUPAC name
ethanesulfonic acid | |||
| Other names
esylic acid, ethylsulfonic acid | |||
| Identifiers | |||
3D model (JSmol) |
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| ECHA InfoCard | 100.008.950 | ||
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |||
| C2H6O3S | |||
| Molar mass | 110.13 g·mol−1 | ||
| Appearance | Colorless liquid | ||
| Density | 1.35 g/mL | ||
| Melting point | −17 °C (1 °F; 256 K) | ||
| Boiling point | 122–123 °C (252–253 °F; 395–396 K) at 0.01mm | ||
| Soluble | |||
| log P | -0.37 | ||
| Acidity (pKa) | -1.68 [1] | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
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References
- YK Ye & RW Stringham (2001-06-21). "Effect of mobile phase acidic additives on enantioselectivity for phenylalanine analogs". J Chromatogr A. 927 (1–2): 53–60. doi:10.1016/S0021-9673(01)01059-7. PMID 11572398.
- Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. 2000. doi:10.1002/14356007.a25_503.
External links
- Ye YK, Stringham RW (2006), The effect of acidic and basic additives on the enantioseparation of basic drugs using polysaccharide-based chiral stationary phases. Chirality 18, 519-530. (PubMed:16676332)
- National Center for Biotechnology Information (2005), Ethanesulfonic acid, PubChem Compound Database; CID=11668, (accessed December 23, 2016)
- https://www.scbt.com/scbt/product/ethanesulfonic-acid-594-45-6
- http://www.chemicalbook.com/productmsdsdetailcb5173859_en.htm
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