::As this article currently has no references at all, it seems premature to start quoting the reliable sources doctrine.  Anyway, I'm not seeking to "Right a great wrong" in the field of organic chemistry. I'm simply trying to help a Template:technical-tagged article to make more sense to people outside the field.  This means removing jargon, and it appears that "66 deg" is jargon for "66 deg dm−1cm3 g−1".  So that's my proposal. Doing nothing is the wrong choice. I'm curious to hear other solutions.