I think you can use an ASCII value (well, Unicode) and you should find " in the "basic Latin" page here. You would use "\u1234" or '\u1234' depending whether you want it as a String or a char (or even (char)0x1234!). But you need to check carefully which method you are invoking. I don't think the replace method will allow you to delete the character. StringBuilder does allow deletions, however.