Ethanesulfonic acid
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| General | ||||||||||||||||||||||
| Surname | Ethanesulfonic acid | |||||||||||||||||||||
| Molecular formula | C 2 H 6 O 3 S | |||||||||||||||||||||
| Brief description |
light yellow clear liquid |
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| properties | ||||||||||||||||||||||
| Molar mass | 110.13 g mol −1 | |||||||||||||||||||||
| Physical state |
liquid |
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| density |
1.35 g cm −3 (25 ° C) |
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| Melting point |
−17 ° C |
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| boiling point |
123 ° C at 0.01 hPa |
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| solubility |
soluble in water |
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| Refractive index |
1.434 (20 ° C) |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C | ||||||||||||||||||||||
Ethanesulfonic acid (ESA, from English ethanesulfonic acid ) is a chemical compound from the group of sulfonic acids . The organic salts and esters of ethanesulfonic acid are known as ethanesulfonates or esilates.
INN nomenclature
In the medical and pharmaceutical sector, the internationally recognized short form for the anion of ethanesulphonic acid (ethanesulphonate) is "Esilat" according to the INN rules. Such short forms are created for molecular components if their systematic designation is too long. The “modified INN” (INNm) is created by combining a short form with the INN of the active component of the drug. One example is the drug nintedanibesilate, derived from the nitrogenous base nintedanib .
