11-Hydroxy Dihydro LoratadineLoratadine IMP 4-(8-chloro-6,11-dihydro-11-hydroxy-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl)-, ethyl ester

Loratadine Impurity BLoratadine IMP 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one

4-Chloro LoratadineLoratadine IMP 4-(4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-piperidinecarboxylic Acid Ethyl Ester

DesloratadineLoratadine IMP 8-Chloro-11-(piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta-[1,2-b]pyridine

Iso LoratadineLoratadine IMP 4-(8-Chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl)-3,6-dihydro-1(2H)-pyridinecarboxylic Acid Ethyl Ester

4-(8-Chloro-11-fluoro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl)-1-Piperidinecarboxylic Acid Ethyl EsterLoratadine IMP Ethyl 4-[(11RS)-8-chloro-11-fluoro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl]piperidine-1-carboxylate

Levothyroxine Levothyroxine API O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine

Levothyroxine Sodium Secondary StandardLevothyroxine Sodium API 3,3',5,5'-Tetraiodo-L-thyronine monosodium salt hydrate

LiothyronineLevothyroxine Sodium IMP (2S)-2-Amino-3-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]propanoic acid

3,3’,5,5’-Tetraiodo Thyroformic AcidLevothyroxine Sodium IMP 4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodobenzoic Acid