Reference

Ultraviolet spectrophotometry in drug monitoring

Ultraviolet spectrophotometry in drug monitoring. XXI. Study of the effect of substitution and solvents in new drugs with benzene and pyridine ring chromophores in the molecules. Kracmar, J.; Alvarez Sotolongo, M.; Kracmarova, J.; Moravcova, B.; Doslova, H. (Statni Ustav Kontrolu Leciv, Prague, Czech.). Cesk. Farm., 26(8), 345-53 (Czech) 1977. CODEN: CKFRAY. ISSN: 0009-0530. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 64, 22 The UV and visible spectra of butamirate citrate [18109-81-4], tetrahydrozoline-HCl [522-48-5], clobutinol-HCl [1215-83-4], clotrimazole [23593-75-1], fenoterol-HBr [1944-12-3], cyclofenil [2624-43-3], iproniazid phosphate [305-33-9], ethionamide [536-33-4], furilazone [3460-67-1], and phenazopyridine-HCl [136-40-3] were reported. Substituent and solvent effects on absorption bands E, K, B, and R were described. The above spectral data can be used in compd. identificatiin and differentiation and quant. detn. of the compds. in pharmaceutical formulations.

Synthetic ion-exchange resins in the quantitative analysis of pharmaceutical preparations

Synthetic ion-exchange resins in the quantitative analysis of pharmaceutical preparations. XV. Determination of imidazoline, pyrazoline, and pyridine derivatives in various forms of simple pharmaceuticals. Jarzebinski, Jerzy (Inst. Drug Sci., Sch. Med., Warsaw, Pol.). Acta Pol. Pharm. 1641-74-3 and 68-89-3 which are cas registry numbers are also used here., 33(5), 599-604 (Polish) 1976. CODEN: APPHAX. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) Solns. contg. the drugs to be assayed were passed through columns packed with Amberlite IR 20 in the Zn2+ or H+ form and the eluate was analyzed for Zn2+ or H+ by complexometric or alkalimetric titrn., resp. The method secured high-accuracy results in detg. benzydamine-HCl [132-69-4], bis(4-pyridylmethyl)amine citrate [22164-96-1], methylphenidate-HCl [298-59-9], phenazopyridine-HCl [136-40-3], tolazoline-HCl [59-97-2], nicametate dihydrogen citrate [1641-74-3], noramidopyrine Na methanesulfonate [68-89-3], tymazoline-HCl [28120-03-8], pyridoxinium chloride [58-56-0], and xylometazoline-HCl [1218-35-5] in tablets, dragees, and solns. .