Retrieve Content Type details via REST

HI,

Is it possible to retrieve the details on a particular content type?

I know I can do this http://Site url/_api/Web/ContentTypes('0x010102001F249FD1DFFB91409202EE97066373C4') and it will return a bunch of info, however I'm interested in the actual schema of the content type - like there is a field called "ProductType" and its a choice of something, something2, something3 etc

all this is contained within the schemaxml property.

thx

MrP