Questions about chemicals and chemical processes that affect and influence medicine.

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5
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1answer
35 views

How are hormone levels measured?

I have been searching google and didn't found any links that describes how this process is performed - I mean the chemical procedure, not the process of taking the blood from the vein.
2
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1answer
60 views

How important are those fields of chemistry in biotechnology and medicinal chemistry

At my university there is some fields of chemistry that i don't know if i should focus on them... How important are in biotechnology and medicinal chemistry those fields of chemistry? : Quantum ...
3
votes
0answers
17 views

PAPS , is it a carrier or not

In sulfate conjugation , is it considered as a carrier or help to make sulfonation if I got a question and I have to choose ( enzyme helps to make the reaction or is a carrier to transfer the sulfate ...
2
votes
1answer
61 views

Why is acetylsalicylic acid still more acid than benzoic acid?

In this question, it is explained why salicylic acid is a stronger acid than benzoic acid. So, why acetylsalicylic acid (aspirin), whose conjugate base cannot hydrogen bond since there is no hydrogen, ...
6
votes
0answers
60 views

Is there a way to turn alcohol into a solid gel?

I'm wondering if there is a way to turn alcohol or another bacteria killing substance into a solid gel form, sort of like the gel you can use to clean a keyboard. Source: Aliexpress.com Computer ...
10
votes
3answers
691 views

Can we prolong life? [closed]

This is rather a bunch of questions that I decided to post on Chemistry StackExchange since I thought the chemists would have the most knowledge about the chemical processes of life. So recently I ...
2
votes
1answer
72 views

Why does the US not manufacture sodium thiopental themselves?

A shortage of a given chemical (sodium thiopendal) has prompted Utah to allow firing squads for executions. This shortage is due to mostly European chemical factories refusing to export the drug to ...
0
votes
1answer
39 views

Looking for a compound [closed]

TL;DR; I need a compound that is harmeless to the human body, odorless, tasteless, causes some kind of visible reaction (urine coloration perhaps) AND can be bought without medical recomendation. LONG ...
12
votes
3answers
146 views

Is it possible to make a drug that liquefies heart plaque to treat heart disease?

Is it possible to make a drug that liquefies heart plaque to treat heart disease without damaging other parts of the body? If so, would the liquefied plaque be eliminated as regular fluid is through ...
6
votes
1answer
564 views

Are there any magnetic particles that are safe to inhale?

In medicine, there is an (old?) experiment where a subject is asked to inhale radioactive Xenon gas, and radiation counters are placed at different positions near the lungs. Using this experiment, it ...
1
vote
1answer
44 views

Hydrolysing large molecules to reveal amino acids

Consider Oxytocin: I am asked to hydrolyse Oxytocin and reveal 5 amino acids which are the result of this hydrolysis. I must admit I have no idea where to begin. I know that generally amino acids ...
2
votes
2answers
245 views

Chirality on Propranolol

I'm a bit confused when asked to specify the chiral carbons on this sketch of Propranolol as I'm not sure how the $\ce{H3C}$ and $\ce{CH3}$ play in if they are reversed in the name like that...Does ...
8
votes
1answer
286 views

Negative ions and health: pseudo science or something more?

Over the last year or so I've heard from friends, who subscribe to holistic medicine, talk about negative ions, saying that they are good for your mental/physical health. Being the only one among them ...
6
votes
1answer
381 views

Why do many pharmaceuticals contain fluorine?

What exactly does fluorination of some compound do in a biological sense? I read the following things about what fluorine does for drugs: Fluorine withdraws electron density and can make an acid ...
1
vote
1answer
785 views

Interpreting a Formula Tattoo (Bipolar?)

Found This Online. Something to do with bipolar disorder?
1
vote
1answer
111 views

How to Experimentally Quantify the Response of a Receptor to a Ligand?

In medicinal chemistry, there are multiple reasons why one would want to experimentally determine the effect of a particular molecule on a receptor e.g. measuring how 'strongly' that molecule brings ...
3
votes
2answers
251 views

Why does blood get further oxidized than Iron oxide?

Oxygenated blood is bright red and deoxygenated blood is dark red or brown. If you take oxygenated blood and leave it in the air it will turn dark red, then brown, then finally a bluish green from ...
1
vote
1answer
55 views

Are salt substitutes good alternatives to sodium chloride?

I bought a low salt Ketchup from Heinz and it says it uses ‘ALSOSALT’ substitute (potassium chloride). It says it does have 5 mg of sodium. Is potassium chloride (with possible additives) a good ...
5
votes
2answers
146 views

What is the active ingredient in this “stimulant?”

It is an easily defensible argument that this is a medical question rather than a chemistry one, however, I feel that it leans ever so slightly towards chemistry, and so I posted it here. There is a ...
8
votes
1answer
2k views

How could alcohol be made into a powder?

In the news recently is 'Palcohol', powdered alcohol, http://www.palcohol.com/home.html that you add to water or existing liquids to make it alcohol. Presumably this would dissolve and break apart ...
3
votes
1answer
242 views

Determine compound acidity based on structure

In an exercise I have the following structures Moclobemide: Paracetamol: Hexobarbital: I know for example by heart that paracetamol is an acid. What is the best approach in determination of ...
0
votes
2answers
206 views

What is the importance of using a pKa value instead of a pKb value when describing drug chemistry?

Why do we only consider the $\mathrm{p}K_\text{a}$ value of a drug regardless of whether it is an acid or base? Why do we not use the $\mathrm{p}K_\text{b}$ value?
0
votes
0answers
56 views

What happens to the structure of tetrayclines when they expire?

I need to explain (chemically) why expired tetracyclines should not be used, relating to the changes in tetracycline structure that occur. All I can find is that they cause nephrosis, etc, but not ...
6
votes
1answer
1k views

What does the “3,4” mean in 3,4-methylenedioxymethamphetamine (MDMA)?

I'm curious to know, what exactly does the 3,4 part of 3,4-methylenedioxymethamphetamine represent?
1
vote
3answers
514 views

Open Source tools to draw a set of 2d molecular graphs from sdf file

I have a sdf file for around 50 small-molecules for which I am doing structure-activity study. I would like to draw 2d graphs of all the molecules such that the image would fit into a single journal ...
3
votes
1answer
191 views

Prediction of surface atoms in molecule from its graph

If we are given a molecular graph i.e. al the atoms involved and their connectivity, how can we make reasonable prediction if the atom would lie in the surface or in the inner part. On way might be ...
3
votes
1answer
413 views

What is the effect of substituting oxygen with sulfur in drug molecules?

What sort of changes in the properties of organic or drug molecules can be anticipated if you substitute some or all of the oxygen atoms with sulphur atoms, and vice versa. My interest in this ...
1
vote
1answer
1k views

What does ingredients being “biologically active” mean?

From Wikipedia Cosmeceuticals refers to the combination of cosmetics and pharmaceuticals. Cosmeceuticals are cosmetic products with biologically active ingredients purporting to have medical ...
2
votes
1answer
918 views

Are there ways to predict which chemicals will kill certain bacteria?

Are there ways to compute what chemicals kill a give bacteria but not another given bacteria ? Does that help much to make medication ?
11
votes
1answer
376 views

Why does the sulfone ring in tazobactam open when the lactam is hydrolyzed?

One of the drugs I work with is a beta-lactam (4-membered ring with an amide bond) fused to a sulfone ring, tazobactam. It's relatively stable in water; the lactam is not significantly hydrolyzed ...
15
votes
1answer
639 views

What are known examples of drugs that racemize/stereoconvert in vivo, and how are they converted?

It is known that although only the (S)-enantiomer of the infamous sedative thalidomide possesses teratogenic properties, it is not very useful to administer the pure (R)-enantiomer since it is ...