loratadine and its Impurities
Loratadine used to treat allergies. This includes allergic rhinitis and hives. It is sold under the brand name Claritin. Reference standards of Loratadine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
 
	
			                                  ![Ethyl 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cycloh PA 12 25600](https://www.pharmaffiliates.com/pimages/PA1225600.jpg) 
																				Ethyl 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridine-11-ylidene)piperidin-2-ene-1-carboxylate
Ethyl 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridine-11-ylidene)piperidin-2-ene-1-carboxylate
- Catalogue No.:PA 12 25600 
- CAS : - 2471971-95-4
- Molecular Formula : C22H21ClN2O2 
- Molecular Weight : 380.87 
 
	
			                                  ![Ethyl 4-(8-chloro-11H-benzo[5,6]cyclohepta[1,2-b]p PA 12 25610](https://www.pharmaffiliates.com/pimages/PA1225610.jpg) 
																				Ethyl 4-(8-chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate
Ethyl 4-(8-chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate
- Catalogue No.:PA 12 25610 
- CAS : - 133330-56-0
- Molecular Formula : C22H21ClN2O2 
- Molecular Weight : 380.87 
 
	
			                                  ![4-(8-Chloro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin- PA 12 25690](https://www.pharmaffiliates.com/pimages/PA1225690.jpg) 
																				4-(8-Chloro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11(6H)-ylidene)piperidine-1-carboxylic Acid
4-(8-Chloro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11(6H)-ylidene)piperidine-1-carboxylic Acid
- Catalogue No.:PA 12 25690 
- CAS : - 2183453-63-4
- Molecular Formula : C20H19ClN2O2 
- Molecular Weight : 354.84 
 
	
			                                  ![4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbon PA 12 25700](https://www.pharmaffiliates.com/pimages/PA1225700.jpg) 
																				4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbonyl]-1-piperidinecarboxylic Acid Ethyl Ester
4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbonyl]-1-piperidinecarboxylic Acid Ethyl Ester
- Catalogue No.:PA 12 25700 
- CAS : - 107256-32-6
- Molecular Formula : C22H25ClN2O3 
- Molecular Weight : 400.9 
 
	
			                                   
																				Loratadine Related Compound C (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one) (1370269)
Loratadine Related Compound C (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one) (1370269)
- Catalogue No.:PA USP1370269 
- CAS : - 31251-41-9
- Molecular Formula : NA 
- Molecular Weight : NA 
 
	
			                                   
																				Loratadine Related Compound A (8-chloro-6,11-dihydro-11(4-piperidylidene)-5H-benzo[5,6]cyclohepta[1 (1370280)
Loratadine Related Compound A (8-chloro-6,11-dihydro-11(4-piperidylidene)-5H-benzo[5,6]cyclohepta[1 (1370280)
- Catalogue No.:PA USP1370280 
- CAS : - 100643-71-8
- Molecular Formula : NA 
- Molecular Weight : NA 
 
	
			                                   
																				Loratadine Related Compound B (8-Chloro-6,11-dihydro-11-(N-methyl-4-piperidinylidene)-5H-benzo[5,6] (1370291)
Loratadine Related Compound B (8-Chloro-6,11-dihydro-11-(N-methyl-4-piperidinylidene)-5H-benzo[5,6] (1370291)
- Catalogue No.:PA USP1370291 
- CAS : - NA
- Molecular Formula : NA 
- Molecular Weight : NA 
 
	
			                                   
																				Ethyl 4-(2-bromo-8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate
Ethyl 4-(2-bromo-8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate
- Catalogue No.:PAI 12 001150 
- CAS : - NA
- Molecular Formula : C22H22BrClN2O2 
- Molecular Weight : 461.78 
 
	
			                                   
																				(Z)-8-Chloro-11-(1-methyl-2,3-dihydropyridin-4(1H)-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
(Z)-8-Chloro-11-(1-methyl-2,3-dihydropyridin-4(1H)-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
- Catalogue No.:PAI 12 001181 
- CAS : - NA
- Molecular Formula : C20H19ClN2 
- Molecular Weight : 322.84 
 
	
			                                  ![Ethyl 4-(8-chloro-6,11-dihydro-5H-benzo[5,6]cycloh PA 12 0251006](https://www.pharmaffiliates.com/pimages/PA120251006.jpg) 
																				Ethyl 4-(8-chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl)-3,6-dihydropyridine-1(2H)-carboxylate hydrochloride
Ethyl 4-(8-chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl)-3,6-dihydropyridine-1(2H)-carboxylate hydrochloride
- Catalogue No.:PA 12 0251006 
- CAS : - 444995-23-7
- Molecular Formula : C22H24Cl2N2O2 
- Molecular Weight : 419.35 
 
	
			                                   
																				(2S,3S,4S,5R,6S)-6-((8-Chloro-11-(piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-3-yl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylicacid,sodiumsalt
(2S,3S,4S,5R,6S)-6-((8-Chloro-11-(piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-3-yl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylicacid,sodiumsalt
- Catalogue No.:PA 12 0251007 
- CAS : - NA
- Molecular Formula : C25H26ClN2NaO7 
- Molecular Weight : 524.93 
 
	
			                                  ![3-(4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohept PA 12 0251008](https://www.pharmaffiliates.com/pimages/PA120251008.jpg) 
																				3-(4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidin-1-yl)-4,5-dihydroxy-5-methylcyclopent-2-en-1-one
3-(4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidin-1-yl)-4,5-dihydroxy-5-methylcyclopent-2-en-1-one
- Catalogue No.:PA 12 0251008 
- CAS : - 1419972-57-8
- Molecular Formula : C25H25ClN2O3 
- Molecular Weight : 436.94 
 
	
			                                   
																				8-Chloro-11-(1-hydroxypiperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine 1-oxide
8-Chloro-11-(1-hydroxypiperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine 1-oxide
- Catalogue No.:PA 12 0251011 
- CAS : - NA
- Molecular Formula : C19H19ClN2O2 
- Molecular Weight : 342.82 

 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				![4,8-Dichloro-6,11-dihydro-5H-benzo[5,6] cyclohepta PA 12 25620](https://www.pharmaffiliates.com/pimages/PA1225620.jpg) 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				![Benzyl 6-bromo-1,4-dioxaspiro[4.5]decane-8-carboxy PAI 12 001010](https://www.pharmaffiliates.com/pimages/PAI12001010.jpg) 
																				 
																				![8-Chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2- PAI 12 001030](https://www.pharmaffiliates.com/pimages/PAI12001030.jpg) 
																				![8,11-Dichloro-6,11-dihydro-5H-benzo[5,6]cyclohepta PAI 12 001040](https://www.pharmaffiliates.com/pimages/PAI12001040.jpg) 
																				![Benzyl 6-bromo-1,4-dioxa-8-azaspiro[4.5]decane-8-c PAI 12 001050](https://www.pharmaffiliates.com/pimages/PAI12001050.jpg) 
																				 
																				![6-Bromo-8-methyl-1,4-dioxa-8-azaspiro[4.5]decane PAI 12 001070](https://www.pharmaffiliates.com/pimages/PAI12001070.jpg) 
																				 
																				 
																				 
																				 
																				 
																				 
																				![8-Chloro-5,6-dihydro-11H-benzo-[5,6]-cyclohepta-[1 PA 12 25710](https://www.pharmaffiliates.com/pimages/PA1225710.jpg) 
																				![8-Chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2- PA 12 25720](https://www.pharmaffiliates.com/pimages/PA1225720.jpg) 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				 
																				![4-(8-Chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1 PA 12 0251009](https://www.pharmaffiliates.com/pimages/PA120251009.jpg) 
																				![8-Chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2- PA 12 0251010](https://www.pharmaffiliates.com/pimages/PA120251010.jpg) 
																				 
																				 
																				 
																				 
																				 
 
 
 
