Why Can't Biologists Just Bow Down and Worship IUPAC?
At first I was happy that I wouldn't be subjected to the birth control pills, aka: ethinylestradiol. But I just went and looked up the chemical formula of estrace and we're looking at micronized 17 beta-estradiol. Hmmm....ethinylestradiol? 17 beta-estradiol?
I dug further. Biologists have come up with a cornucopia of terms to refer to estrace:
1,3,5(10)-Estratriene-3,17b-diol
(17b)-Estra-1,3,5(10)-triene-3,17-diol
cis-estradiol
3,17-epidihydroxyestratriene
dihydrofollicular hormone
dihydrofolliculin
dihydroxyestrin
dihydrotheelin
None of them tell you much about what the hell estrace really is.
All I can say is "leave it to the biologists to f*ck up chemical nomenclature". IUPAC created a sensible process whereby one names a chemical according to how things are "stuck" onto it, or in which order they're stuck on. Biologists, on the other hand, create odd names like toluene that us chemists would call methyl benzene. How much more simple can that be? Methyl benzene: a benzene ring with a methyl group stuck anywhere you wish on it. Remove one H- on each the benzene and the methyl, stick together, and viola! Methyl benzene! Damned easy. But toluene? Unless you have the name memorized, you will have no idea what you're looking at. (Yeah, I've got that one memorized thanks to the biologists). [Note: Biologists might not be responsible for the toluene naming convention, but it's just to illustrate an example, one of MANY, that I found in my pre-med college years].
So why am I all pissy about biologists and their bastardized naming conventions? For instance, the biologists call the substance in birth control pills "ethinyl estradiol".
The chemists? 17-ethynyl-13-methyl- 7,8,9,11,12,13,14,15,16,17- decahydro-6H-cyclopenta[a] phenanthrene-3,17-diol.
Scary? Yes. But this is what it IS. You could build the damned molecule based using the IUPAC name. But what does the name "ethinylestradiol" tell you?
Not a damned thing except that you have an ethinyl stuck onto an estradiol, a diol meaning a "di alcohol" (or two -OH groups on it). But "ethinylestradiol" is shorthand. Who on earth wants to memorize the sequence of carbon and hydrogen atoms in the example above? Not me. So I do see the need for a shorthand version whereby we can all say that "ethinylestradiol" is the same as the huge assed molecule above.
Liken it, if you will, to hieroglyphic versus alphabetized languages. With an alphabet you can break down a word to it's fundamental elements (ie sounds and syllables). With a hieroglyph, there may be nothing that tells you that you are looking at a 3 syllable word that starts with "z". Instead, you have to memorize all 65,000 symbols, or how many the language contains, in order to communicate. With an alphabet, you need only memorize 26 or so, give or take a few depending on which alphabet you're working with. You memorize the sounds to the letter clusters and you're at least phonetically saying something, even if you don't know what the hell you're saying.
So it's twice the work to memorize both the IUPAC version and the biologists' I-want-to-be-a-chemist version. But why the hell do the biologists need to go out and create 8 other names which state the same thing?
That just drives me batty.
Labels: IVF3 Take 2, rant
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