Hi Jerome. I suggest you check www.pAbmAbs.com if you are looking for suitable antibodies against e.g B-gal. Here, scientists can share information about antibodies they use in their research so the antibodies are validated by scientists, not companies. Antibodies are rated by the application they are used in so you can find different suggestions depending on the application you are planning to use it in. Currently, more than 1000 different antibodies are rated at the site and i hope you will contribute with reviews on the antibodies you use in your research as well. This will be very valuable for other scientists looking for suitable antibodies for their research. Thank you :)