This product is horseradish peroxidase (HRP) -labeled guinea pig anti-human IgG, and it has good immune reactivity with human IgG1, IgG3, IgM, IgA, IgG2a, and IgG2b subtypes/classes. It has no cross-reaction with other species such as Ig and can be used in scientific research experiments like ELISA, IHC and Blot.