API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Ropivacaine Hydrochloride Monohydrate

EP Impurity A

 (S)-bupivacaine
Ropivacaine Hydrochloride Monohydrate

EP Impurity C

 (-)-(2S)-N-(2,6-dimethylphenyl)-1-methylpiperidine-2-carboxamide ((S)-mepivacaine), Ropivacaine-Hydrochloride-Monohydrate-EP-Impurity-C
Ropivacaine Hydrochloride Monohydrate

EP Impurity G

 (+)-(2R)-N-(2,6-dimethylphenyl)-1-propylpiperidine-2-carboxamide ((R)-ropivacaine), Ropivacaine-Hydrochloride-Monohydrate-EP-Impurity-G
Ropivacaine Hydrochloride Monohydrate

EP Impurity H

 2,6-dimethylaniline Ropivacaine-Hydrochloride-Monohydrate-EP-Impurity-H