Tirzepatide and its Impurities
Tirzepatide, sold under the brand name Mounjaro, is an antidiabetic medication used for the treatment of type 2 diabetes. Reference standards of Tirzepatide API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
 
	
			                                   
																				(25S,52R)-52-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46-pentaoxo-3,32,35,41,44-pentaoxa-24,29,38,47-tetraazatripentacontan-53-oic Acid
(25S,52R)-52-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46-pentaoxo-3,32,35,41,44-pentaoxa-24,29,38,47-tetraazatripentacontan-53-oic Acid
- Catalogue No.:PA PEP 003112 
- CAS : - NA
- Molecular Formula : C66H105N5O16 
- Molecular Weight : 1224.59 
 
	
			                                   
																				(25S,52S,59S)-52,59-Bis((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46,53-hexaoxo-3,32,35,41,44-pentaoxa-24,29,38,47,54-pentaazahexacontan-60-oic Acid
(25S,52S,59S)-52,59-Bis((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46,53-hexaoxo-3,32,35,41,44-pentaoxa-24,29,38,47,54-pentaazahexacontan-60-oic Acid
- Catalogue No.:PA PEP 003114 
- CAS : - NA
- Molecular Formula : C87H127N7O19 
- Molecular Weight : 1575.00 
 
	
			                                   
																				(25S,52S)-52-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-4,23,28,37,46-pentaoxo-3,32,35,41,44-pentaoxa-24,29,38,47-tetraazatripentacontan-53-oic Acid
(25S,52S)-52-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-4,23,28,37,46-pentaoxo-3,32,35,41,44-pentaoxa-24,29,38,47-tetraazatripentacontan-53-oic Acid
- Catalogue No.:PA PEP 003115 
- CAS : - NA
- Molecular Formula : C64H101N5O16 
- Molecular Weight : 1196.53 
 
	
			                                   
																				(24S,51S)-51-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-24-(tert-butoxycarbonyl)-2,2-dimethyl-4,22,27,36,45-pentaoxo-3,31,34,40,43-pentaoxa-23,28,37,46-tetraazadopentacontan-52-oic Acid
(24S,51S)-51-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-24-(tert-butoxycarbonyl)-2,2-dimethyl-4,22,27,36,45-pentaoxo-3,31,34,40,43-pentaoxa-23,28,37,46-tetraazadopentacontan-52-oic Acid
- Catalogue No.:PA PEP 003116 
- CAS : - 3055106-62-9
- Molecular Formula : C65H103N5O16 
- Molecular Weight : 1210.56 
 
	
			                                   
																				(25S,70S)-70-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46,55,64-heptaoxo-3,32,35,41,44,50,53,59,62-nonaoxa-24,29,38,47,56,65-hexaazahenheptacontan-71-oic Acid
(25S,70S)-70-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46,55,64-heptaoxo-3,32,35,41,44,50,53,59,62-nonaoxa-24,29,38,47,56,65-hexaazahenheptacontan-71-oic Acid
- Catalogue No.:PA PEP 003117 
- CAS : - NA
- Molecular Formula : C78H127N7O22 
- Molecular Weight : 1514.90 
 
	
			                                   
																				(25S,61S)-61-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46,55-hexaoxo-3,32,35,41,44,50,53-heptaoxa-24,29,38,47,56-pentaazadohexacontan-62-oic Acid
(25S,61S)-61-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37,46,55-hexaoxo-3,32,35,41,44,50,53-heptaoxa-24,29,38,47,56-pentaazadohexacontan-62-oic Acid
- Catalogue No.:PA PEP 003118 
- CAS : - NA
- Molecular Formula : C72H116N6O19 
- Molecular Weight : 1369.74 
 
	
			                                   
																				N2-(((9H-Fluoren-9-yl)methoxy)carbonyl)-N6-((S)-5-(tert-butoxy)-4-(20-(tert-butoxy)-20-oxoicosanamido)-5-oxopentanoyl)-L-lysine
N2-(((9H-Fluoren-9-yl)methoxy)carbonyl)-N6-((S)-5-(tert-butoxy)-4-(20-(tert-butoxy)-20-oxoicosanamido)-5-oxopentanoyl)-L-lysine
- Catalogue No.:PA PEP 003119 
- CAS : - NA
- Molecular Formula : C54H83N3O10 
- Molecular Weight : 934.27 
 
	
			                                   
																				(25S,43S)-43-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37-tetraoxo-3,32,35-trioxa-24,29,38-triazatetratetracontan-44-oic Acid
(25S,43S)-43-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37-tetraoxo-3,32,35-trioxa-24,29,38-triazatetratetracontan-44-oic Acid
- Catalogue No.:PA PEP 003120 
- CAS : - 2612237-97-3
- Molecular Formula : C60H94N4O13 
- Molecular Weight : 1079.43 

 
																				 
																				![[Kyn25]-Tirzepatide PA PEP 001205](https://www.pharmaffiliates.com/pimages/PAPEP001205.jpg) 
																				 
																				 
																				 
																				 
																				 
																				 
																				![Val-[12]-Tirzepatide PA PEP 002550](https://www.pharmaffiliates.com/pimages/PAPEP002550.jpg) 
																				![Des-[Gly(30)-Pro(31)]-Tirzepatide PA PEP 002601](https://www.pharmaffiliates.com/pimages/PAPEP002601.jpg) 
																				 
																				![Fmoc-L-Lys[C20-OtBu-Glu(OtBu)-AEEA-AEEA]-OH PA PEP 003111](https://www.pharmaffiliates.com/pimages/PAPEP003111.jpg) 
																				![Lys[C20-OtBu-Glu(OtBu)-AEEA-AEEA]-OH PA PEP 003113](https://www.pharmaffiliates.com/pimages/PAPEP003113.jpg) 
																				![[Des-Gly30]-Tirzepatide PA PEP 003239](https://www.pharmaffiliates.com/pimages/PAPEP003239.jpg) 
																				![[Des-Gly34]-Tirzepatide PA PEP 003240](https://www.pharmaffiliates.com/pimages/PAPEP003240.jpg) 
																				 
																				 
																				 
																				 
																				 
																				![Fragment [1-24]-Tirzepatide PA PEP 003463](https://www.pharmaffiliates.com/pimages/PAPEP003463.jpg) 
																				 
																				 
																				 
 
 
 
