Category
Isradipine
CAS Number
Isradipine STD - 75695-93-1 : IMP - A - 75695-99-7 : IMP - B - 1352916-15-4
Molecular Formula
Isradipine STD - C19H21N3O5 : IMP - A - C18H19N3O5 : IMP - B - C21H25N3O5
Molecular Weight
Isradipine STD - 371.39 g/mol : IMP - A - 357.37 g/mol : IMP - B - 399.45 g/mol
Synonym

Isradipine - 3-Isopropyl 5-methyl 4-(benzo[c][1,2,5]oxadiazol-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate; 4-(4-Benzofurazanyl)-1,-4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid methyl 1-methylethyl ester ; 3-Methyl 5-(propan-2-yl) (4RS)-4-(2,1,3-benzoxadiazol-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate;

Isradipine EP Impurity - A -  5-ethyl 3-methyl (4RS)-4-(2,1,3-benzoxadiazol-4-yl)-2,6dimethyl-1,4-dihydropyridine-3,5-dicarboxylate ; 

Isradipine EP Impurity - B -  di(propan-2-yl) 4-(2,1,3-benzoxadiazol-4-yl)-2,6-dimethyl1,4-dihydropyridine-3,5-dicarboxylate ; bis(1-Methylethyl) (4RS)-4-(2,1,3-benzoxadiazol-4-yl)-2,6-dimethyl-1,4-dihydro pyridine-3,5-dicarboxylate ; diisopropyl 4-(benzo[c][1,2,5]oxadiazol-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate ; 

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Purity:

Above - 95.0%

Technical Data:

We will provide complete documentation support for every Standard Material. All analytical reports such as ¹H NMR, ¹³C NMR, Mass, FT-IR, HPLC Purity/GC Purity/QNMR Purity, Water content by KF/ Loss on Drying/TGA (Thermo-gravimetric Analysis). Certificate of Analysis with potency report. Each Standard Material SER (Structure Elucidation Report) with NMR, Mass, IR spectral interpretation. This whole analytical document can be included in eCTD, ANDA, DMF submissions to regulatory agencies.

Isradipine Chemical Reference Substance (CRS) is used in chromatographic analysis to accurately identify its peak in pharmaceutical formulations. It serves as a standard reference for retention time and peak resolution, ensuring system suitability and precise quantification of isradipine during quality control and analytical testing.