UltraBrite™蓝色IHC色原(HRP)产品是The UltraBrite™ blue IHC chromogen (HRP) is a substrate-chromogen system designed to be used for either immunohistochemistry (IHC) or ISH when utilizing horseradish peroxidase. UltraBrite™ blue IHC chromogen (HRP) produces a sharply contrasting ebony blue color that can easily be distinguished from other stains.