the nature of the operations performed using animal by-products or derived products as starting material.

Each impurity shall be categorised as resulting from side reactions, impurities in the starting material, remaining reaction intermediates or starting materials.

(ii) the nature of the operations performed using animal by-products or derived products as starting material.

the nature of the operations performed using animal by-products or derived products as starting material.

(a) cosmetic or medicinal products or medical devices, or to their starting materials or intermediate products;