I am looking for a product of
Could you tell me which company has this product.
Thank you very much.
Santa Cruz has one that is recommended for immunofluorescence; it may work for IHC: link
Santa Cruz has quite a few Abs against mast cell proteases. One of these might work: link
Abcam has an antibody that was raised against a region of human chymase that is 72% similar to the rat protein. It has been used for rat IHC (paraffin) with reasonable results: link