510(k) Predicate Finder
Find potential predicate devices for your 510(k) submission. Enter a K-number to find all clearances with the same product code, a three-letter product code to browse clearances directly, or search by device name.
Ion-Exchange Resin, Ehrlich'S Reagent, Porphobilinogen
Clinical Chemistry
The Ion-Exchange Resin, Ehrlich's Reagent, Porphobilinogen test is a clinical chemistry diagnostic device used to detect and measure porphobilinogen in urine, a compound relevant to the diagnosis of acute porphyrias. The colorimetric reaction uses Ehrlich's reagent following ion-exchange resin separation to identify the analyte. This device is FDA Class 1, the lowest risk category, subject only to general controls with no premarket submission required. It carries product code JNF and is regulated under 21 CFR 862.1590, within the Clinical Chemistry medical specialty.
510(k) Clearances
1 matchesWhat is a Predicate Device?
A predicate device is a legally marketed device that a new 510(k) applicant uses to demonstrate substantial equivalence. The FDA's 510(k) pathway requires manufacturers to show that their device has the same intended use and similar technological characteristics as one or more predicate devices already cleared for commercial distribution.
Finding the right predicate is a critical step in 510(k) strategy. Manufacturers typically search for cleared devices with the same FDA product code, which groups devices by their intended use and regulatory classification. This tool helps you identify potential predicates by browsing all clearances within a product code.
Note that predicate devices must be legally marketed — they cannot be devices that were cleared but never commercialized, or devices subject to a mandatory recall. The determination of substantial equivalence considers intended use, technological characteristics, and performance data.