What you're thinking of is the thing he wrote titled, "On The Jewish Question" which sounds really bad out of context. It's titled that because he was responding to (and disagreeing with), another thing titled, "The Jewish Question"
As far as other possibly anti-semitic stuff he may have been involved in throughout his life, I have no idea.
He was indeed disgareeing with and responding to worse and largely right wing takes in that essay. Still, I'm afraid the way he's being summarized here is revisionist if you read what he actually wrote. I found it in the Marx Engels Reader ("on the jewish question," as correctly pointed out above). It's very mild antisemtism, especially contrasted against the right wing takes he was responding to, but it's still there.
What you're thinking of is the thing he wrote titled, "On The Jewish Question" which sounds really bad out of context. It's titled that because he was responding to (and disagreeing with), another thing titled, "The Jewish Question"
As far as other possibly anti-semitic stuff he may have been involved in throughout his life, I have no idea.
He was indeed disgareeing with and responding to worse and largely right wing takes in that essay. Still, I'm afraid the way he's being summarized here is revisionist if you read what he actually wrote. I found it in the Marx Engels Reader ("on the jewish question," as correctly pointed out above). It's very mild antisemtism, especially contrasted against the right wing takes he was responding to, but it's still there.