Date	Severity	Status	Feedback
Jan 14 2013 8:07PM	High	Acknowledged	Dear ChemSpider, I was trying to find the skeletal formula of many hydrocarbons for my Chemistry coursework. This site is increadible... The best I have come across so will always use from now on! Thank you very much, Yours Sincerely, Will jack Thanks, we're really glad it came in useful for you. You might also want to check out Learn Chemistry, which is a great resource for chemistry students: http://www.rsc.org/learn-chemistry
Dec 12 2008 10:43AM	Normal	Fixed	130983-70?-9 is not a valid CAS RN. The CAS Number 130983-70-9 does appear to be valid based on the search below. I don't see the ? shown in your copied CAS number on our site. http://www.google.com/search?q=130983-70-9&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a Thank you for the feedback.