HSN Code 0510 refers to "Ambergris, castoreum, civet and musk; cantharides; bile, whether or not dried; glands and other animal products used in the preparation of pharmaceutical products, fresh, chilled, frozen or otherwise provisionally preserved." This classification code is essential for identifying specific animal-derived products used in pharmaceuticals for import/export purposes based on their nature, composition, and intended use. Common products under HSN Code 0510 include ambergris, castoreum, civet, musk, and various animal glands. Additionally, the GST rate for these animal products under this code supports accurate trade compliance.