Carvedilol Impurity API

9H-Carbazole is a common component of complex electrical materials. Also an impurity in the synthesis of Carprofen (C184350), a non steroidal anti-inflammatory that is used by veterinarians for the relief of arthritic systems in dogs. It can be used for joint pain or post operative inflammation. Carprofen, is also used for the relief from pain and inflammation associated with osteoarthritis, hip dysplasia and other joint issues. This compound is a contaminant of emerging concern (CECs)