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 Bendamustine impurity 1/Bendamustine Impurity D
 Olanzapine impurity 4/Olanzapine Thiolactam Impurity
 Atorvastatin impurity 4/Atorvastatin EP Impurity A Calcium Salt
 Entecavir impurity 1/(1R,3R,4R)-Entecavir
 Calcipotriol EP Impurity A
 pre-Calcitriol PTAD Adduct/Calcitriol EP Impurity C
 Isocyclosporine A
 Cyclosporine G
 Clobetasol Propionate EP Impurity E
 15(S)-Latanoprost
 (15R)-Bimatoprost/15-epi Bimatoprost
 15-Keto Travoprost
 15S-Cloprostenol/15-epi Cloprostenol
 Azithromycin EP Impurity H
 Azithromycin EP Impurity I
 Roxithromycin EP Impurity B
 Erythromycin EP Impurity A
 Erythromycin EP Impurity B
 Clarithromycin EP Impurity A
 Clarithromycin EP Impurity B
 Clarithromycin EP Impurity F
 Rivaroxaban impurity 3/ Dechloro-Rivaroxaban
 Clindamycin Phosphate EP Impurity B/Clindamycin B 2-Phosphate
 Riociguat Impurity 9/2-Desfluoro-3-fluoro-Riociguat
 Riociguat Impurity 19/N-Desmethyl Riociguat
 Sunitinib Amide Impurity
 Caspofungin impurity 1/Caspofungin Impurity A
 Lurasidone impurity 4/Lurasidone Sulfoxide
 Lurasidone impurity 5/Lurasidone Sulfone
 Lurasidone impurity 7/Lurasidone Piperazine N-Oxide
 Rivaroxaban impurity 6/ Rivaroxaban Pseudodimer
 Afatinib impurity 1/Afatinib Dimer Impurity
 Paliperidone impurity 10/Paliperidone N-Oxide
 Paliperidone impurity 11/Paliperidone 9-Keto Impurity
 Azithromycin EP Impurity L/Azithromycin N-Oxide
 Fulvestrant impurity 5/Fulvestrant EP Impurity E
 Fluticasone Propionate EP Impurity B/Fluticasone Sulfenic Acid Propionate
 Pemetrexed impurity 3/Pemetrexed EP Impurity D
 Vinorelbine EP Impurity G
 Darunavir impurity 2/Darunavir CBZ Amino Impurity
 Prednisolone impurity 4/Prednisolone EP Impurity F
 Prednisolone impurity 6/Prednisolone EP Impurity J
 
Products
Product ID:FY-SIL18 
Chemical Name:Sildenafil Impurity 18 
Synonyms:5-(2-hydroxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 
Cas No.:139756-26-6 
Molecular Formula:C15H16N4O2 
Molecular Weight:284.31 
Specification:95% 
Molecular Structure: 

 
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