API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Ethyl Hydroxybenzoate Sodium

EP Impurity A

 4-hydroxybenzoic acid Ethyl Hydroxybenzoate Sodium_EP Impurity A
Ethyl Hydroxybenzoate Sodium

EP Impurity B

 methyl 4-hydroxybenzoate Ethyl Hydroxybenzoate Sodium_EP Impurity B
Ethyl Hydroxybenzoate Sodium

EP Impurity C

 propyl 4-hydroxybenzoate Ethyl Hydroxybenzoate Sodium_EP Impurity C
Ethyl Hydroxybenzoate Sodium

EP Impurity D

 butyl 4-hydroxybenzoate Ethyl Hydroxybenzoate Sodium_EP Impurity D