Identification and quantitation of impurities in dapsone preparations
β Scribed by G. R. Gordon; D. C. Ghoul; J. H. Peters
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 336 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
β¦ Synopsis
Chromatographic and fluorometric procedures were developed to isolate and quantitate small amounts of 2,4'-diaminodiphenyl sulfone and 4-aminodiphenyl sulfone in pharmaceutical preparations of the antileprosy drug 4,4'-diaminodiphenyl sulfone (dapsone). Identification was accomplished by comparison with authentic compounds employing UV absorption, fluorometry, and mass spectrometry in addition to TLC and high-pressure liquid chromatography.
Keyphrases Dapsone-isolation, identification, and quantitation, pharmaceutical preparations TLC-determination, dapsone impurities in pharmaceutical preparations 0 High-pressure liquid chromatography-determination, dapsone impurities in pharmaceutical preparations . .
π SIMILAR VOLUMES
Hydrochlorothiazide (6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7sulfonamide 1,1-dioxide) (HCTZ) 1 is a widely used diuretic and anti-hypertensive. Recently, the Pharmeuropa recognized a new impurity initially thought to be an HCTZ dimer 6, which consists of the active drug (HCTZ) linked via the