Sildenafil EP IMpurity D(1357931-55-5) ¹H NMR

5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one(1391053-95-4)¹HNMR 1-Methyl-4-nitro-3-propyl-(1H)-pyrazole-5-carboxamide(139756-01-7)¹HNMR 1-Methyl-4-nitro-3-propyl-(1H)-pyrazole-5-carboxamide(139756-01-7)¹HNMR SILDENAFIL N-OXIDE(1094598-75-0)¹HNMR Homo Sildenafil(642928-07-2)¹HNMR DESMETHYL SILDENAFIL(139755-82-1)¹HNMR 5-chloro-2-ethoxybenzoic acid(62871-12-9)¹HNMR 4-Amino-1-methyl-3-propyl-5-pyrazolecarboxamide(139756-02-8)IR 4-Amino-1-methyl-3-propyl-5-pyrazolecarboxamide(139756-02-8)¹HNMR 2-METHYL-4-NITRO-2H-PYRAZOLE-3-CARBOXYLIC ACID(92534-69-5)¹HNMR 2-Ethoxybenzoyl chloride(42926-52-3)MS 2-Ethoxybenzoyl chloride(42926-52-3)IR1 Ethyl 2-ethoxybenzoate(6290-24-0)¹³CNMR Ethyl 2-ethoxybenzoate(6290-24-0)¹HNMR Ethyl 2-ethoxybenzoate(6290-24-0)IR1 Ethyl 2-ethoxybenzoate(6290-24-0)MS 1-METHYL-3-(2-METHYLPROPYL)-1H-PYRAZOLE-5-CARBOXYLIC ACID(769132-77-6)¹HNMR Methyl 2-ethoxybenzoate(3686-55-3)¹³CNMR