5-chloro Hydrochlorothiazide is a derivative of hydrochlorothiazide, which is a diuretic and antihypertensive agent that increases renal excretion of sodium, potassium, chloride, and bicarbonate ions by inhibiting tubular reabsorptive mechanisms.
Hydrochlorothiazide impurity C is a potential impurity found in commercial hydrochlorothiazide preparations. [1] Hydrochlorothiazide is a thiazide diuretic that inhibits the apical membrane sodium chloride cotransporter in the distal and collecting duct nephron segments.[2][3][4]
4-Amino-6-chloro-1,3-benzenedisulfonamide is a carbonic anhydrase inhibitor.1 Formulations containing this compound are diuretics.2 4-Amino-6-chloro-1,3-benzenedisulfonamide is detected as a hydrolysis product of chlorothiazide in the urine.2 Diuretics, including chlorothiazide, have been abused as performance-enhancing drugs and masking agents in sports doping.3References1. Nishimori, I., Vullo, D., Minakuchi, T., et al. Carbonic anhydrase inhibitors: Cloning and sulfonamide inhibition studies of a carboxyterminal truncated α-carbonic anhydrase from Helicobacter pylori. Bioorg. Med. Chem. Lett. 16(8), 2182-2188 (2006).2. Deventer, K., Pozo, O.J., Van Eenoo, P., et al. Detection of urinary markers for thiazide diuretics after oral administration of hydrochlorothiazide and altizide-relevance to doping control analysis. J. Chromatogr. A 1216(12), 2466-2473 (2009).3. Cadwallader, A.B., de la Torre, X., Tieri, A., et al. The abuse of diuretics as performance-enhancing drugs and masking agents in sport doping: Pharmacology, toxicology and analysis. Br. J. Pharmacol. 161(1), 1-16 (2010). 4-Amino-6-chloro-1,3-benzenedisulfonamide is a carbonic anhydrase inhibitor.1 Formulations containing this compound are diuretics.2 4-Amino-6-chloro-1,3-benzenedisulfonamide is detected as a hydrolysis product of chlorothiazide in the urine.2 Diuretics, including chlorothiazide, have been abused as performance-enhancing drugs and masking agents in sports doping.3 References1. Nishimori, I., Vullo, D., Minakuchi, T., et al. Carbonic anhydrase inhibitors: Cloning and sulfonamide inhibition studies of a carboxyterminal truncated α-carbonic anhydrase from Helicobacter pylori. Bioorg. Med. Chem. Lett. 16(8), 2182-2188 (2006).2. Deventer, K., Pozo, O.J., Van Eenoo, P., et al. Detection of urinary markers for thiazide diuretics after oral administration of hydrochlorothiazide and altizide-relevance to doping control analysis. J. Chromatogr. A 1216(12), 2466-2473 (2009).3. Cadwallader, A.B., de la Torre, X., Tieri, A., et al. The abuse of diuretics as performance-enhancing drugs and masking agents in sport doping: Pharmacology, toxicology and analysis. Br. J. Pharmacol. 161(1), 1-16 (2010).