We found this at a local taqueria and ordered on line - it is a Salsa Picante de Chile Habanero. It's got good heat, but very flavorful and aromatic. When you shake a few drops on something hot, the smell it releases is wonderful - just like habanero's roasting. We like the green rather than the red (both are habanero).
Here's a mail order source: http://www.mexgrocer.com/3102.html