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Germall-2 Powder Antiseptic, also known as Diazolidinyl urea, is a kind of bacteriostatic agent for in vitro diagnostic reagents, the main ingredient is Diazolidinyl Urea (ISP trade name Germall II, Jimei-2), the product is a white fluidity powder, with a slight formaldehyde odor, easy to absorb moisture but moisture absorption does not affect the antibacterial activity. GML-2 Diazolidinyl urea bacteriostatic agent is used in vitro diagnostic reagent buffers, diluents, and cleaning solutions, which can replace sodium azide and can be used in combination with commonly used IVD bacteriostatic agents.