Cultivate a wide variety of bacteria, usually prepared with blood to observe hemolytic reactions.||Appearance:|Light beige, homogeneous and free flowing powder||Solubility (plain):|Yellow-beige, trace to slightly hazy||Solubility (wIth blood):|Red, opaque||pH:|7.0 ± 0.2||Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.