Resmetirom and its Impurities
Resmetirom is an experimental drug for the treatment of non-alcoholic steatohepatitis. Reference standards of Resmetirom API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
 
	
			                                   
																				N-(3,5-Dichloro-4-((6-oxo-5-(prop-1-en-2-yl)-1,6-dihydropyridazin-3-yl)oxy)phenyl)benzamide
N-(3,5-Dichloro-4-((6-oxo-5-(prop-1-en-2-yl)-1,6-dihydropyridazin-3-yl)oxy)phenyl)benzamide
- Catalogue No.:PA 18 1541002 
- CAS : - 1581304-50-8
- Molecular Formula : C20H15Cl2N3O3 
- Molecular Weight : 416.26 
 
	
			                                   
																				Ethyl (2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)hydrazono)acetyl)carbamate
Ethyl (2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)hydrazono)acetyl)carbamate
- Catalogue No.:PA 18 1541005 
- CAS : - 920509-33-7
- Molecular Formula : C19H18Cl2N6O5 
- Molecular Weight : 481.29 
 
	
			                                   
																				(Z)-6,6'-((Triaz-1-ene-1,3-diylbis(2,6-dichloro-4,1-phenylene))bis(oxy))bis(4-isopropylpyridazin-3(2H)-one)
(Z)-6,6'-((Triaz-1-ene-1,3-diylbis(2,6-dichloro-4,1-phenylene))bis(oxy))bis(4-isopropylpyridazin-3(2H)-one)
- Catalogue No.:PA 18 1541007 
- CAS : - NA
- Molecular Formula : C26H23Cl4N7O4 
- Molecular Weight : 639.32 
 
	
			                                   
																				2-(3,5-Dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxamide
2-(3,5-Dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxamide
- Catalogue No.:PA 18 1541008 
- CAS : - 2542029-02-5
- Molecular Formula : C17H14Cl2N6O5 
- Molecular Weight : 453.24 
 
	
			                                   
																				2-(3,5-Dichloro-4-((4-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
2-(3,5-Dichloro-4-((4-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
- Catalogue No.:PA 18 1541013 
- CAS : - NA
- Molecular Formula : C17H12Cl2N6O4 
- Molecular Weight : 435.22 
 
	
			                                   
																				2-(3-Chloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
2-(3-Chloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
- Catalogue No.:PA 18 1541014 
- CAS : - 2639977-02-7
- Molecular Formula : C17H13ClN6O4 
- Molecular Weight : 400.78 
 
	
			                                   
																				2-(3,5-Dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-1,2,4-triazine-3,5(2H,4H)-dione
2-(3,5-Dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-1,2,4-triazine-3,5(2H,4H)-dione
- Catalogue No.:PA 18 1541017 
- CAS : - 920509-34-8
- Molecular Formula : C16H13Cl2N5O4 
- Molecular Weight : 410.21 
 
	
			                                   
																				Ethyl (Z)-(2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-nitrosohydrazineylidene)acetyl)carbamate
Ethyl (Z)-(2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-nitrosohydrazineylidene)acetyl)carbamate
- Catalogue No.:PA 18 1541018 
- CAS : - NA
- Molecular Formula : C19H17Cl2N7O6 
- Molecular Weight : 510.29 
 
	
			                                   
																				2-(3,5-Dichloro-4-((5-(1-hydroxypropan-2-yl)-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
2-(3,5-Dichloro-4-((5-(1-hydroxypropan-2-yl)-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
- Catalogue No.:PA 18 1541019 
- CAS : - 2222607-69-2
- Molecular Formula : C17H12Cl2N6O5 
- Molecular Weight : 451.22 
 
	
			                                   
																				2-(3,5-Dichloro-4-hydroxyphenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
2-(3,5-Dichloro-4-hydroxyphenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
- Catalogue No.:PA 18 1541020 
- CAS : - 125001-18-5
- Molecular Formula : C10H4Cl2N4O3 
- Molecular Weight : 299.07 
 
	
			                                   
																				Ethyl (E)-(2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-nitrosohydrazineylidene)acetyl)carbamate
Ethyl (E)-(2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-nitrosohydrazineylidene)acetyl)carbamate
- Catalogue No.:PA 18 1541022 
- CAS : - NA
- Molecular Formula : C19H17Cl2N7O6 
- Molecular Weight : 510.29 
 
	
			                                   
																				2-(3,5-Dichloro-4-((6-chloro-5-isopropylpyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
2-(3,5-Dichloro-4-((6-chloro-5-isopropylpyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile
- Catalogue No.:PA 18 1541023 
- CAS : - 2403721-20-8
- Molecular Formula : C17H11Cl3N6O3 
- Molecular Weight : 453.66 
 
	
			                                   
																				Ethyl (2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-nitrosohydrazineylidene)acetyl)carbamate
Ethyl (2-cyano-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-nitrosohydrazineylidene)acetyl)carbamate
- Catalogue No.:PA 18 1541024 
- CAS : - NA
- Molecular Formula : C19H17Cl2N7O6 
- Molecular Weight : 510.29 
 
	
			                                   
																				6-Cyano-2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine 1-oxide
6-Cyano-2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine 1-oxide
- Catalogue No.:PA 18 1541025 
- CAS : - NA
- Molecular Formula : C17H12Cl2N6O5 
- Molecular Weight : 451.22 
 
	
			                                   
																				2-(3,5-Dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic Acid
2-(3,5-Dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic Acid
- Catalogue No.:PA 18 1541026 
- CAS : - 920509-35-9
- Molecular Formula : C17H13Cl2N5O6 
- Molecular Weight : 454.22 
 
	
			                                   
																				Ethyl (Z)-(3-amino-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)hydrazineylidene)-3-oxopropanoyl)carbamate
Ethyl (Z)-(3-amino-2-(2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)hydrazineylidene)-3-oxopropanoyl)carbamate
- Catalogue No.:PA 18 1541027 
- CAS : - NA
- Molecular Formula : C19H20Cl2N6O6 
- Molecular Weight : 499.31 
 
	
			                                   
																				2-Amino-N-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-oxoacetohydrazonoyl cyanide
2-Amino-N-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-oxoacetohydrazonoyl cyanide
- Catalogue No.:PA 18 1541028 
- CAS : - 2987937-25-5
- Molecular Formula : C16H14Cl2N6O3 
- Molecular Weight : 409.23 

 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
 
 
 
