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.
Formalin, Neutral Buffered
Pathology
Neutral Buffered Formalin is the most widely used tissue fixative in histopathology, a 10% formaldehyde solution buffered to near-neutral pH to prevent formalin pigment formation, used to preserve biopsy and surgical specimens for routine histological processing and diagnosis. It is regulated as an FDA Class 1 device, the lowest risk level, subject to general controls without requiring premarket notification. The product code is IFP, regulated under 21 CFR 864.4010, in the Pathology medical specialty. This device is exempt from GMP requirements.
510(k) Clearances
15 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.