1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester

1,4-二氢-2,6-二甲基-4-(3-硝基苯基)-3,5-吡啶二甲酸二异丙酯

Also known as: Nimodipine EP Impurity B, Nimodipine Impurity B, Nimodipine Impurity 2, Nimodipine EP Imp B, (RS)-Di-iso-propyl-1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate, 3,5-diisopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylate, 3-Des(2-methoxyethyl) 3-(1-Methylethyl) Ester Nimodipine, 4-(3-nitrophenyl)-2,6-dimethyl-3,5-diisopropyloxycarbonyl-1,4-dihydropyridine, diisopropyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridine-dicarboxylate, 2,6-dimethyl-4-(3-nitro-phenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid diisopropyl ester, Nimodipine Impurity B Control

1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid bis(1-methylethyl) ester (CAS 21881-78-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H26N2O6 and a molecular weight of 402.44100 g/mol. It is also known as Nimodipine EP Impurity B, Nimodipine Impurity B and Nimodipine Impurity 2. Key properties include a melting point of 123-125 ºC (ethanol ) and a density of 1.186±0.06 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

21881-78-7

Jingsj CID

J-1523626-5

Molecular Formula

C₂₁H₂₆N₂O₆

Chinese Name

1,4-二氢-2,6-二甲基-4-(3-硝基苯基)-3,5-吡啶二甲酸二异丙酯

Molecular Weight

402.44100 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026