User talk:192.185.4.106

January 2014
Hello, I'm Materialscientist. I wanted to let you know that I undid one or more of your recent contributions to Friedel–Crafts reaction because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks! Materialscientist (talk) 00:08, 12 January 2014 (UTC)