brivudine and its Impurities
Brivudine is used for the treatment of herpes zoster in adult patients. Brivudine is an antiviral drug.. Reference standards of Brivudine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
 
	
			                                   
																				((2R,3S,5R)-3-Acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl Acetate
((2R,3S,5R)-3-Acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl Acetate
- Catalogue No.:PA 29 22530 
- CAS : - 6979-97-1
- Molecular Formula : C14H18N2O7 
- Molecular Weight : 326.31 
 
	
			                                   
																				(E)-3-(1-((2R,4S,5R)-4-acetoxy-5-(acetoxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acrylic Acid
(E)-3-(1-((2R,4S,5R)-4-acetoxy-5-(acetoxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acrylic Acid
- Catalogue No.:PA 29 22540 
- CAS : - NA
- Molecular Formula : C16H18N2O9 
- Molecular Weight : 382.33 
 
	
			                                   
																				5-(2,2-Dibromovinyl)-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
5-(2,2-Dibromovinyl)-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
- Catalogue No.:PA 29 22550 
- CAS : - 61135-36-2
- Molecular Formula : C11H12Br2N2O5 
- Molecular Weight : 412.03 
 
	
			                                   
																				1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde
1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde
- Catalogue No.:PA 29 0221000 
- CAS : - 4494-26-2
- Molecular Formula : C10H12N2O6 
- Molecular Weight : 256.21 
 
	
			                                   
																				7-[2-C-Ethynyl-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine
7-[2-C-Ethynyl-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine
- Catalogue No.:PA 29 0221001 
- CAS : - 1291103-01-9
- Molecular Formula : C13H17N4O13P3 
- Molecular Weight : 530.22 
 
	
			                                   
																				(2R,3S,5R)-5-(5-((E)-2-Bromovinyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(((4-chlorobenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-chlorobenzoate
(2R,3S,5R)-5-(5-((E)-2-Bromovinyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(((4-chlorobenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-chlorobenzoate
- Catalogue No.:PA 29 0221006 
- CAS : - 87531-10-0
- Molecular Formula : C25H19BrCl2N2O7 
- Molecular Weight : 610.24 
 
	
			                                   
																				7-Bromo-6-((E)-2-bromovinyl)-2-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-8-(1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-2,4-diazabicyclo[4.2.0]octane-3,5-dione
7-Bromo-6-((E)-2-bromovinyl)-2-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-8-(1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-2,4-diazabicyclo[4.2.0]octane-3,5-dione
- Catalogue No.:PA 29 0221007 
- CAS : - NA
- Molecular Formula : C22H26Br2N4O10 
- Molecular Weight : 666.28 

 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
 
 
 
