WolframAlpha function does not return structure diagram for chemicals

Neither one of

WolframAlpha["Caffeine"]
WolframAlpha["Caffeine","FullOutput"]


returns a structure diagram for the molecule. It's consistent since StructureDiagram is not in the list of PodIDs, but a structure diagram is returned when querying caffeine on wolframalpha.com, and when calling:

ChemicalData["Caffeine"]


Also, page 394 of the book Hands-on Start to Wolfram Mathematica (2nd edition) shows a call to WolframAlpha["caffeine"] returning a structure diagram and a 3D structure.

Anyone know why the structure diagram is missing?

• WolframAlpha["caffeine Structure diagram"] gives it to you. – george2079 Feb 27 '18 at 19:40
• This looks like a bug, I will report it and see what I can do about it. – Jason B. Feb 27 '18 at 19:48
• It's interesting that WolframAlpha["Caffeine","Image"] returns the expected result (in an expect unusable format). – bobthechemist Feb 27 '18 at 20:13
• @george2079, yes it does. Thank you. – Lee Feb 27 '18 at 21:00
• @bobthechemist, yes it returns an image with dimensions {540,2465}. Not worth further processing when ChemicalData["Caffeinne","ColorStructureDiagram"] returns it explicitly. I was most interested it finding out if something is wrong with the basic WolframAlpha[] call. It seems like there might be. – Lee Feb 27 '18 at 21:06

There was a bug that caused some pods to show up on the web site, but not be picked up by the API that WolframAlpha calls. This is fixed now,