API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Tenoxicam

EP Impurity A

pyridin-2-amine EP-Impurity-A-pyridin-2
Tenoxicam

EP Impurity B

methyl 4-hydroxy-2-methyl-2H-thieno[2,3-e]1,2-thiazine-3-carboxylate 1,1-dioxide EP-Impurity-B-methyl-4