Sciencemadness Discussion Board

Need help with my absurd-chemicals-name-collection

Fantasma4500 - 27-6-2022 at 04:59

i have at times come across some hilariously complex names for chemicals, i believe it might be an oncoming hobby for me, i have thus far collected these:

3,4-dihydroxy-9,10-seco-androst-1,3,5(10)-triene-9,17-dione,

1,2,3,5,6,7-Hexahydroxyanthracene-9,10-dione

p,p-dibromo-diphenyl-1,1,1-trichloro-ethane

1,3,5-triethyl-1,3,5-triaza-2,4,6-trimethylcyclohexane

2-(2-methoxypropoxy)-2-(2-methoxypropoxy)propanol

7-Chloro-1-methyl-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one-diazepam

(2Z)-7-Chloro-N-methyl-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-imine 4-oxide

Ethyl 4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-piperidinecarboxylate

but i really wanna see how long and absurd these IUPAC names can end up as, i would be gracious for input on this.

clearly_not_atara - 27-6-2022 at 08:01

"The chemical name for remdesivir is 2-Ethylbutyl (2S)-2-{[(S)-{[(2R,3S,4R,5R)-5-(4-
aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl]
methoxy}(phenoxy)phosphoryl]amino}propanoate."

https://www.ema.europa.eu/en/documents/other/summary-compass...

EDIT: so long it broke the URL formatter, lol

[Edited on 27-6-2022 by clearly_not_atara]

Tsjerk - 27-6-2022 at 12:20

I have always been wondering what the full name for aconitan would be

https://en.m.wikipedia.org/wiki/Aconitine

Texium - 27-6-2022 at 21:13

The IUPAC names for proteins name every amino acid residue that make them up. So titin, the largest protein ever characterized, with over 30,000 residues, has an IUPAC name that is over 180,000 letters long:

https://chemistryforyouandme.blogspot.com/2012/06/iupac-name...

Fantasma4500 - 29-6-2022 at 00:57

just under 190k it seems, tempted to recite it all just as a challenge
now, methionyl, on its own is "CH3S(CH2)2CH(NH2)CO"
i guess when aminoacids are involved its a different kind of game, stretching into infinity, but technically it is the same - despite they lack the numbers that i adore so much

Tsjerk - 29-6-2022 at 01:29

You could go completely overboard and start naming the human chromosome 1, which is 249 million base pairs large. There are most likely larger chromosomes known though. One DNA strand is composed of two molecules, although I think the number 249 million has to be divided by two as well as a chromosome exists of two double stranded helixes.

https://pubchem.ncbi.nlm.nih.gov/compound/Deoxyribonucleic-a...

woelen - 29-6-2022 at 22:45

Plain sugar (C12H22O11) has the following name: (2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol

Tsjerk - 30-6-2022 at 00:22

Apperantly to get the stereochemistry of something simple like mannitol right you have to name the six carbon chain twice:
(2R,3R,4R,5R)-Hexane-1,2,3,4,5,6-hexol

Edit, nevermind, brainfart. Of course they don't mention the six carbons twice. I didn't have enough coffee

[Edited on 30-6-2022 by Tsjerk]

mayko - 30-6-2022 at 09:58

Wheat chromosome 3B is 0.83 gigbases long (for comparison, the entire human genome is about 3.1 gigabases). I've seen claims that the tulip has chromosomes large enough to contain the entire human genome but so far as I can tell the sequence hasn't been published yet.

If the forward and reverse strands were joined at a telomere, you could double the molecule length (and hence its name). I don't know offhand of a way to do this but it's plausible one exists; the two ends are right there in close proximity.

Fantasma4500 - 2-7-2022 at 09:50

Tsjerk: [5-amino-2-[[[5-amino-2-(hydroxymethyl)oxolan-3-yl]oxy-hydroxyphosphoryl]oxymethyl]oxolan-3-yl] (5-amino-3-hydroxyoxolan-2-yl)methyl hydrogen phosphate
seems good enough to me for now :)

woelen: the fact that its an everyday item just makes it extra fun to me, maybe its about time we upgrade the DHMO ban to a (2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol-ban

im thinking the one texium posted could maybe be the chemistry version of extending pi, they have these little competitions where they write as many characters after pi as they can manage, but its based on some logical formula rather than just pure memory

if human genome is 3.1 billion bases long, then the 190k long protein is quite small in comparison

[Edited on 2-7-2022 by Antiswat]

wg48temp9 - 3-7-2022 at 00:32

Quote: Originally posted by Texium  
The IUPAC names for proteins name every amino acid residue that make them up. So titin, the largest protein ever characterized, with over 30,000 residues, has an IUPAC name that is over 180,000 letters long:

https://chemistryforyouandme.blogspot.com/2012/06/iupac-name...


I wondered what titin did. Apparently it gives elasticity to muscle fibers.

According to Wiki: Titin is the third most abundant protein in muscle (after myosin and actin), and an adult human contains approximately 0.5 kg of titin.[13] With its length of ~27,000 to ~35,000 amino acids (depending on the splice isoform), titin is the largest known protein.[14] Furthermore, the gene for titin contains the largest number of exons (363) discovered in any single gene,[15] as well as the longest single exon (17,106 bp).

Thats crazy its coded in 363 parts with 363(-1 probably) spaces (introns). The parts have to be linked or the protein bits have to be linked to make the whole protein. Evolution seems very inefficient.

Tsjerk - 3-7-2022 at 03:45

Quote: Originally posted by wg48temp9  


Thats crazy its coded in 363 parts with 363(-1 probably) spaces (introns). The parts have to be linked or the protein bits have to be linked to make the whole protein. Evolution seems very inefficient.


Inefficient? Flexible I would call it. There are 13 known isoforms, which can all be made from the same gene. Parts aren't linked, the introns are removed at the RNA level when constructing the mRNA

BromicAcid - 3-7-2022 at 05:45

Long names are one thing but there are plenty of fun names in chemistry. alkoxide, bullvalene, and the ever-enduring arsole are among my favorites.

mayko - 3-7-2022 at 08:48

If anything, titin is unusally efficient in its use of genomic real estate. Here it is in the UCSC browser; there is relatively little space that isn't used in one transcript isoform or another.

By contrast, a little down the chromosome arm there's a more run of the mill zinc finger protein. It's transcript is only ~2.5kb to titin's ~100kb, but it occupies a larger stretch of DNA. Nearly all of the gene locus is intron!

Tsjerk - 3-7-2022 at 09:04

Well, evolution is usually very simple; either there is a reason for something to be the way it is or it really doesn't matter that much.