| http://www.w3.org/ns/prov#value | - For example, an imaging reagent may have a formula of A-B-C, where A and/or C may be a functional moiety and B comprises repeated units of ???[O???CF2(CF2)xCF2]n???, where x is an integer from 0 to 10, preferably from 0-3, and n is an integer from 2 to 100, preferably from 4 to 40.
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