This chemical is called Peptones, and it can also be named as Tryptones. With the CAS registry number of 73049-73-7, its product categories are Base Ingredients; Microbiology; Protein Sources (Peptones/Extracts). Additionally, it's powder. It should be stored sealed in the cool and dry place.

Peptones are derived from animal milk or meat digested by proteolytic digestion. It contains small peptides, the resulting spray-dried material includes fats, metals, salts, vitamins and many other biological compounds. Moreover, it's used in nutrient media for growing bacteria and fungi.