Cant find drawer bracket replacement for this broken part.

Hello, I'm hoping you may be able to help me find a replacement part for a drawer that recently broke in my house. I can't find this style bracket anywhere, as it seems the industry has switched to a bracket with a flat back. Our drawers have a crossbeam that is built directly behind which runs parallel with the ground. This bracket attached to that beam (the part of the bracket on the right side of the photo), and then the rails for the side of the drawer sits in the part of the bracket on the left side of the photo. The top of the bracket snapped off, which caused the rail to fall.

Any help would be much appreciated! I didn't see the part on your site, and I can't find it anywhere!
Thanks,

Bill