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Desloratadine

3-[2-(3-chlorophenyl)ethyl] pyridine-2-carbonitrile
Carbonitrile impurity

CAS No.                   : 31255-57-9
Molecular Formula: C14H11ClN2
Molecular Weight   : 242.70
Chemical Name      : 3-[2-(3-chlorophenyl)ethyl] pyridine-2-carbonitrile

Bromo-DEL1

CAS No.                   : NA
Molecular Formula: C22H23BrN2O2
Molecular Weight   : 427.33
Chemical Name      : 4-(8-Bromo-5,6-dihydro-benzo[5,6]cycloheptal[1,2b]pyridin-11-ylidene)-piperdine-1-carboxylic acid ethyl ester

8-bromo-11-(piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine
Bromo impurity DES-1

CAS No.                   : 117796-50-6
Molecular Formula: C19H19BrN2
Molecular Weight   : 355.27
Chemical Name      : 8-bromo-11-(piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine

(1-methyl-4-piperidinyl)-3-[2-(3-chlorophenyl) ethyl]-2-pyridinyl-methanone
Uncyclized impurity, TRL related

CAS No.                   : 130642-50-1
Molecular Formula: C20H23ClN2O
Molecular Weight   : 342.86
Chemical Name      : (1-methyl-4-piperidinyl)-3-[2-(3-chlorophenyl) ethyl]-2-pyridinyl-methanone

8-Bromo-11- (1-methyl-4- piperidinylidene)-6,11-dihydro-5H- Benzo [5,6] cyclohepta [1,2-b] pyridine
TRL-Bromo impurity

CAS No.                   : 130642-57-8
Molecular Formula: C20H21BrN2
Molecular Weight   : 369.30
Chemical Name      : 8-Bromo-11- (1-methyl-4- piperidinylidene)-6,11-dihydro-5H- Benzo [5,6] cyclohepta [1,2-b] pyridine