Lutein (Halloween Carotene)
Category: Food
Lutein is just another carotenoid - like the previously covered retinal, it is a terpene....
Posted by Molecule of the Day at 7:57 PM • 0 Comments • 0 TrackBacks
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Molecules: You'd better learn to live with them.
October 30, 2007
Category: Food
Lutein is just another carotenoid - like the previously covered retinal, it is a terpene....
Posted by Molecule of the Day at 7:57 PM • 0 Comments • 0 TrackBacks
October 26, 2007
Category: Inorganic
Mercury dissolves many metals. Put a little on normally steadfast aluminum and it will slowly eat it away. Mix it with some silver, copper, and other metals, and you've got a dental filling. Mix it with sodium, and you've got...
Posted by Molecule of the Day at 9:00 AM • 3 Comments • 0 TrackBacks
October 25, 2007
Category: Inorganic
The term "rare earth metal" is a misnomer that's just stuck around. They haven't been rare for years - take this ad material from about 50 years ago at Theodore Gray's excellent Periodic Table Table site....
Posted by Molecule of the Day at 9:00 AM • 3 Comments • 0 TrackBacks
October 24, 2007
As I've mentioned several times before, NMR is vital to modern chemistry (and medicine, for that matter)....
Posted by Molecule of the Day at 9:00 AM • 2 Comments • 0 TrackBacks
October 23, 2007
Category: Inorganic
Mischmetal is a mixture of a some rare earth metals, mostly cerium and lanthanum. The cerium, when finely divided, is pyrophoric - it burns....
Posted by Molecule of the Day at 7:25 PM • 3 Comments • 0 TrackBacks
October 19, 2007
Category: Poisons
Lewisite is nasty stuff - it's a compound of arsenic with two labile chlorines. As I mentioned yesterday, BAL is its antidote....
Posted by Molecule of the Day at 8:09 PM • 1 Comments • 0 TrackBacks
October 18, 2007
Category: Medicine
Lewisite is nasty stuff, which I'll cover tomorrow. Tonight, it's an antidote, which is simply the dithio analogue of glycerine. It enjoys the more colorful name of BAL, or British Anti-Lewisite....
Posted by Molecule of the Day at 8:47 PM • 1 Comments • 0 TrackBacks
October 17, 2007
Category: Synthesis
My boss was, generally, far from cavalier about chemical hazards, but his quips were the best. "You'll get hit by a bus before this stuff gets you." "We all have to go sometime!" Or, when wiping up (gloveless) a concentrated (deep red) ethidium bromide spill, "I'm too old to worry about this intercalator shit!"
Posted by Molecule of the Day at 7:27 PM • 3 Comments • 0 TrackBacks
October 12, 2007
Category: Medicine
Diazolidinyl urea is a broad-spectrum biocide that is ubiquitous in cosmetics:...
Posted by Molecule of the Day at 9:00 AM • 2 Comments • 0 TrackBacks
October 11, 2007
Category: Biology
DCMU is a simple aromatic molecule, and a pretty specific electron acceptor for the photosystem II protein found in plants. What does this mean?...
Posted by Molecule of the Day at 9:00 AM • 0 Comments • 0 TrackBacks