[texhax] Grand FInale -- Chemistry molecular structures

[Karl Berry]

    I've find the Japanese package xymtex:
    http://ctex.myrice.com/document/packages/math/xymtex.htm

As well as the principal documentation on CTAN that Robin mentioned,
there have been articles in TUGboat on XymTeX.  Namely:
http://www.tug.org/TUGboat/Articles/tb22-4/tb72fuji.pdf
http://www.tug.org/TUGboat/Articles/tb21-1/tb66fuji.pdf
http://www.tug.org/TUGboat/Articles/tb16-1/tb46fuji.pdf

HTH.