Name | Amlodipine |
Synonyms | LOTREL Amlodipine AMLODIPINE amlodipine AMLODIPINE BASE 3-ethyl5-methylester (R)-3-ethyl 5-methyl 2 Amlodipine base (crystalline) 3,5-pyridinedicarboxylicacid,1,4-dihydro-2-((2-aminoethoxy)methyl)-4-(2-chlor Methyl ethyl 2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate methyl ethyl 2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate |
CAS | 88150-42-9 |
EINECS | 1308068-626-2 |
InChI | InChI=1/C20H25ClN2O5/c1-4-28-20(25)18-15(11-27-10-9-22)23-12(2)16(19(24)26-3)17(18)13-7-5-6-8-14(13)21/h5-8,17,23H,4,9-11,22H2,1-3H3 |
Molecular Formula | C20H25ClN2O5 |
Molar Mass | 408.88 |
Density | 1.227±0.06 g/cm3(Predicted) |
Melting Point | 178-179°C |
Boling Point | 527.2±50.0 °C(Predicted) |
Water Solubility | 75.3 mg/L |
Solubility | 75.3 mg/L |
Appearance | Yellow solid |
Color | White |
pKa | pKa 8.6 (Uncertain) |
Storage Condition | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
Stability | Stable for 1 year from date of purchase as supplied. Solutions in DMSO, DMF, or ethanol may be stored at -20°C for up to 3 months. |
MDL | MFCD00887594 |
Physical and Chemical Properties | Amlodipine Maleate: C20H25CIN2O5? C4H4O4. [88150-47-4]. White crystals were obtained from ethyl acetate, melting point 178-179 °c. |
RTECS | US7968329 |
Hazard Class | 6.1 |
Toxicity | TDLo orl-chd: 400 mg/kg:BPR AJEMEN 18,581,2000 |
Reference Show more | 1. [IF=3.535] Hui Jiang et al."Determination of lipid–water partition coefficient of neutral and ionic drugs by liposome electrokinetic chromatography."Electrophoresis. 2021 Aug;42(14-15):1436-1449 |
white crystalline powder.
ethyl chloroacetoacetate, N-benzylaminoethanol and sodium hydride were reacted in tetrahydrofuran to give ethyl 4-(2-benzylaminoethoxy) acetoacetate. Then it reacts with O-chlorobenzaldehyde, 3-amino methyl methacrylate and acetic acid in methanol, and the resulting product is hydrogenated and reduced to obtain amlodipine. Alternatively, ethyl chloroacetoacetate and ammonium azide ethanol are condensed under the action of sodium hydride to obtain ethyl 4-(2-azidoethoxy) acetoacetate, which is then cyclized with O-chlorobenzaldehyde and methyl 3-aminobutenoate, the final reduction of the azido group gave amlodipine.
developed by Pfizer Inc., USA, launched in 1990. Long-acting dihydropyridine calcium antagonists. For hypertension, can be used alone or in combination with other antihypertensive drugs, can also be used in patients with stable angina.