Sildenafil di-amide impurity is a chemical compound identified as an active pharmaceutical ingredient (API) impurity. It is structurally related to the drug substance sildenafil and is used as a reference standard or marker in pharmaceutical manufacturing and quality control processes.
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CAS 139756-03-9
Lifitegrast Impurity N12
Active pharmaceutical ingredient impurity
Ethyl 2-(2-hydroxy-4,5-dimethoxybenzamido)thiazole-4-carboxylate
Active pharmaceutical ingredient impurity
Apalutamide Dithio Impurity
Active pharmaceutical ingredient impurity
N-Desmethyl Almotriptan
Active pharmaceutical ingredient impurity
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone
active pharmaceutical ingredient
Sildenafil chlorosulfonyl
pharmaceutical intermediate
Pyrotinib dimaleate
active pharmaceutical ingredient
1H-Purine-2,6-dione, 8-[(3R)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl-4,4,4-d3)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-; 8-[(3R)-3-Amino-1-piperidinyl]-7-(2-butyn-1-yl-4,4,4-d3)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-p
active pharmaceutical ingredient
4-[(2-ethoxybenzoyl)amino]-1-methyl-3-propylpyrazole-5-carboxamide
UAFIHVRUICMADE-UHFFFAOYSA-N
CCCC1=NN(C(=C1NC(=O)C2=CC=CC=C2OCC)C(=O)N)C