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FFMU Intermediates are standardized solutions of monoclonal antibodies for use in the formulation of finished blood typing reagents. By dilution — blending (where appropriate) and chemical additions — manufacturers can formulate their own finished reagents with reactivity profiles suitable for their specific applications.

In many ways, our range of FFMU Intermediates is similar in usage to polyclonal source plasma. However, the products have major advantages in lot-to-lot consistency — for potency and specificity, and have minimal processing requirements — no defibrination, delipidisation or absorption of unwanted antibodies. The potency of each batch is carefully controlled to match that of an internal reference batch. All FFMUs contain 0.1% (w/v) sodium azide as a preservative. Most of the FFMU series of antibodies are currently licensed with the US Food and Drug Administration under shared manufacturing arrangements.

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