riociguat and its Impurities
Riociguat belongs to the class of soluble guanylate cyclase (sGC) medication, and is used to treat pulmonary hypertension . Reference standards of Riociguat API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
 
	
			                                  ![6-Amino-2-[1-[(2-fluorophenyl)methyl]-1H-pyrazolo[ PA 18 43540](https://www.pharmaffiliates.com/pimages/PA1843540.jpg) 
																				6-Amino-2-[1-[(2-fluorophenyl)methyl]-1H-pyrazolo[3,4-b]pyridin-3-yl]-7,9-dihydro-8H-purin-8-one
6-Amino-2-[1-[(2-fluorophenyl)methyl]-1H-pyrazolo[3,4-b]pyridin-3-yl]-7,9-dihydro-8H-purin-8-one
- Catalogue No.:PA 18 43540 
- CAS : - 1361569-10-9
- Molecular Formula : C18H13FN8O 
- Molecular Weight : 376.35 
 
	
			                                   
																				1,1'-bis(3-Fluorobenzyl)-1H,1'H-[5,6'-Bipyrazolo[3,4-b]pyridine]-3,3'-Bis(carboximidamide) Dihydrochloride
1,1'-bis(3-Fluorobenzyl)-1H,1'H-[5,6'-Bipyrazolo[3,4-b]pyridine]-3,3'-Bis(carboximidamide) Dihydrochloride
- Catalogue No.:PA 18 43590 
- CAS : - NA
- Molecular Formula : C28H24Cl2F2N10 
- Molecular Weight : 609.46 
 
	
			                                  ![6-Amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]py PA 18 43650](https://www.pharmaffiliates.com/pimages/PA1843650.jpg) 
																				6-Amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-7,9-dimethyl-7,9-dihydro-8H-purin-8-one
6-Amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-7,9-dimethyl-7,9-dihydro-8H-purin-8-one
- Catalogue No.:PA 18 43650 
- CAS : - 1361569-23-4
- Molecular Formula : C20H17FN8O 
- Molecular Weight : 404.41 
 
	
			                                  ![2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3- PA 18 0431000](https://www.pharmaffiliates.com/pimages/PA180431000.jpg) 
																				2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(phenyldiazenyl)pyrimidine-4,6-diamine
2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(phenyldiazenyl)pyrimidine-4,6-diamine
- Catalogue No.:PA 18 0431000 
- CAS : - 428854-23-3
- Molecular Formula : C23H18FN9 
- Molecular Weight : 439.46 
 
	
			                                   
																				Dimethyl (6-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidine-4,5-diyl)dicarbamate
Dimethyl (6-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidine-4,5-diyl)dicarbamate
- Catalogue No.:PA 18 0431004 
- CAS : - 2708578-77-0
- Molecular Formula : C21H19FN8O4 
- Molecular Weight : 466.43 
 
	
			                                   
																				Methyl (4-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-6-(methylamino)pyrimidin-5-yl)carbamate
Methyl (4-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-6-(methylamino)pyrimidin-5-yl)carbamate
- Catalogue No.:PA 18 0431005 
- CAS : - 2514697-53-9
- Molecular Formula : C20H19FN8O2 
- Molecular Weight : 422.42 
 
	
			                                   
																				Methyl (4-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-6-((methoxycarbonyl)amino)pyrimidin-5-yl)(methyl)carbamate
Methyl (4-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-6-((methoxycarbonyl)amino)pyrimidin-5-yl)(methyl)carbamate
- Catalogue No.:PA 18 0431007 
- CAS : - 2518331-19-4
- Molecular Formula : C22H21FN8O4 
- Molecular Weight : 480.46 
 
	
			                                   
																				Lithium 6-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-7-methyl-8-oxo-7,8-dihydropurin-9-ide
Lithium 6-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-7-methyl-8-oxo-7,8-dihydropurin-9-ide
- Catalogue No.:PA 18 0431008 
- CAS : - NA
- Molecular Formula : C19H14FLiN8O 
- Molecular Weight : 396.31 
 
	
			                                  ![2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3- PA 18 0431009](https://www.pharmaffiliates.com/pimages/PA180431009.jpg) 
																				2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(2-phenylhydrazinyl)pyrimidine-4,6-diamine
2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(2-phenylhydrazinyl)pyrimidine-4,6-diamine
- Catalogue No.:PA 18 0431009 
- CAS : - NA
- Molecular Formula : C23H20FN9 
- Molecular Weight : 441.47 
 
	
			                                   
																				1-(2-Fluorobenzyl)-N-((1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)(imino)methyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide
1-(2-Fluorobenzyl)-N-((1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)(imino)methyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide
- Catalogue No.:PA 18 0431012 
- CAS : - NA
- Molecular Formula : C28H21F2N9 
- Molecular Weight : 521.54 
 
	
			                                  ![(E)-N-(Amino(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b] PA 18 0431013](https://www.pharmaffiliates.com/pimages/PA180431013.jpg) 
																				(E)-N-(Amino(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)methylene)-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide
(E)-N-(Amino(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)methylene)-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide
- Catalogue No.:PA 18 0431013 
- CAS : - NA
- Molecular Formula : C28H21F2N9 
- Molecular Weight : 521.54 
 
	
			                                   
																				3-(4,6-Diamino-5-((methoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine 7-oxide
3-(4,6-Diamino-5-((methoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine 7-oxide
- Catalogue No.:PA 18 0431014 
- CAS : - NA
- Molecular Formula : C20H19FN8O3 
- Molecular Weight : 438.42 
 
	
			                                   
																				N'-(4,6-Diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)-N,N-dimethylformimidamide
N'-(4,6-Diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)-N,N-dimethylformimidamide
- Catalogue No.:PA 18 0431015 
- CAS : - NA
- Molecular Formula : C20H20FN9 
- Molecular Weight : 405.44 
 
	
			                                   
																				N-(4,6-Diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)-N-methylnitrous Amide
N-(4,6-Diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)-N-methylnitrous Amide
- Catalogue No.:PA 18 0431016 
- CAS : - NA
- Molecular Formula : C18H16FN9O 
- Molecular Weight : 393.39 
 
	
			                                   
																				Methyl (4-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-6-(methyl(nitroso)amino)pyrimidin-5-yl)(methyl)carbamate
Methyl (4-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-6-(methyl(nitroso)amino)pyrimidin-5-yl)(methyl)carbamate
- Catalogue No.:PA 18 0431017 
- CAS : - NA
- Molecular Formula : C21H20FN9O3 
- Molecular Weight : 465.45 
 
	
			                                   
																				Ethyl (4,6-diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)carbamate
Ethyl (4,6-diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)carbamate
- Catalogue No.:PA 18 0431018 
- CAS : - 625115-49-3
- Molecular Formula : C20H19FN8O2 
- Molecular Weight : 422.42 
 
	
			                                   
																				Methyl (4,6-diamino-2-(1-benzyl-5-fluoro-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)carbamate
Methyl (4,6-diamino-2-(1-benzyl-5-fluoro-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)carbamate
- Catalogue No.:PA 18 0431019 
- CAS : - 3052969-91-9
- Molecular Formula : C19H17FN8O2 
- Molecular Weight : 408.4 
 
	
			                                   
																				Methyl (4,6-diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)(ethyl)carbamate
Methyl (4,6-diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)pyrimidin-5-yl)(ethyl)carbamate
- Catalogue No.:PA 18 0431021 
- CAS : - 1361570-27-5
- Molecular Formula : C21H21FN8O2 
- Molecular Weight : 436.45 
 
	
			                                  ![(E)-2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridi PA 18 0431026](https://www.pharmaffiliates.com/pimages/PA180431026.jpg) 
																				(E)-2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(phenyldiazenyl)pyrimidine-4,6-diamine
(E)-2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(phenyldiazenyl)pyrimidine-4,6-diamine
- Catalogue No.:PA 18 0431026 
- CAS : - 370879-49-5
- Molecular Formula : C23H18FN9 
- Molecular Weight : 439.46 

 
																				 
																				 
																				 
																				![1-(4-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 43550](https://www.pharmaffiliates.com/pimages/PA1843550.jpg) 
																				![1-(3-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-Ca PA 18 43560](https://www.pharmaffiliates.com/pimages/PA1843560.jpg) 
																				 
																				![Methyl 1-[(2-Fluorophenyl)methyl]pyrazolo[3,4-b]py PA 18 43580](https://www.pharmaffiliates.com/pimages/PA1843580.jpg) 
																				![6-Amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]py PA 18 43600](https://www.pharmaffiliates.com/pimages/PA1843600.jpg) 
																				![1-[(3-Fluorophenyl)methyl]-1H-pyrazolo[3,4-b]pyrid PA 18 43610](https://www.pharmaffiliates.com/pimages/PA1843610.jpg) 
																				![1-(4-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 43620](https://www.pharmaffiliates.com/pimages/PA1843620.jpg) 
																				![1-Benzyl-1H-pyrazolo[3,4-b]pyridine-3-carboximidam PA 18 43630](https://www.pharmaffiliates.com/pimages/PA1843630.jpg) 
																				![2-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3- PA 18 43640](https://www.pharmaffiliates.com/pimages/PA1843640.jpg) 
																				 
																				 
																				 
																				 
																				![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 0431001](https://www.pharmaffiliates.com/pimages/PA180431001.jpg) 
																				![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 0431002](https://www.pharmaffiliates.com/pimages/PA180431002.jpg) 
																				![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 0431003](https://www.pharmaffiliates.com/pimages/PA180431003.jpg) 
																				![2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3- PA 18 0431006](https://www.pharmaffiliates.com/pimages/PA180431006.jpg) 
																				 
																				![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 0431010](https://www.pharmaffiliates.com/pimages/PA180431010.jpg) 
																				![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 0431011](https://www.pharmaffiliates.com/pimages/PA180431011.jpg) 
																				![Methyl (4,6-diamino-2-(1H-pyrazolo[3,4-b]pyridin-3 PA 18 0431020](https://www.pharmaffiliates.com/pimages/PA180431020.jpg) 
																				![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-ca PA 18 0431022](https://www.pharmaffiliates.com/pimages/PA180431022.jpg) 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				![3-(Trifluoromethyl)-1H-pyrazolo[3,4-b]pyridine PA 18 0431028](https://www.pharmaffiliates.com/pimages/PA180431028.jpg) 
																				![1H-Pyrazolo[3,4-b]pyridine-3-carbonitrile PA 18 0431029](https://www.pharmaffiliates.com/pimages/PA180431029.jpg) 
																				 
 
 
 
