
Bayer Corp.
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UNCONJUGATED ESTRIOL ASSAY FOR THE BAYER IMMUNO 1 SYSTEM (IN VITRO DIAGNOSTIC SYSTEM) is an FDA 510(k)-cleared medical device (K974721) manufactured by Bayer Corp.. This device is classified under the Clinical Chemistry specialty. FDA Device Class I (General Controls) — lowest risk category. FDA clearance granted on March 2, 1998. Regulation: 8.