<p>The present invention provides Caspofungin and salts thereof substantially free of Caspofungin Co and salts thereof. The present invention also provides processes for the preparation of said Caspofungin and salts thereof and processes for the determination of the amount of Caspofungin Co and salts thereof present in Caspofungin and salts thereof. The present invention further provides pharmaceutical compositions comprising said Caspofungin and salts thereof.</p>
