Research Article
Enzymatic Transformation and Bonding of Sulfonamide Antibiotics to Model Humic Substances
Table 1
Physicochemical properties and structures of the selected sulfonamides.
| Compound
CAS number
Molecular weight
Molar volume | Formula
Structure | Physicochemical properties |
| Sulfanilamide
(SAA)
63-74-1
172.2 g mol−1
120.6 cm3 | C6H8N2O2S
| −0.62
: 1.9
: 10.6
#H-Acceptor: 4
#H-Donor: 4 |
| Sulfapyridine
(SPY)
144-83-2
249.3 g mol−1
174.0 cm3 | C11H11N3O2S
| 0.35
: 2.9
: 8.4
#H-Acceptor: 5
#H-Donor: 3 |
| Sulfadimethoxine
(SDT)
122-11-2
310.3 g mol−1
215.2 cm3 | C12H14N4O4S
| 1.63
: 2.4
: 6.0
#H-Acceptor: 8
#H-Donor: 3 |
|
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