soma - 28-10-2016 at 22:14
I recently received a sample of n-acetylcysteine amide to use as a standard for analysis. It came with specs that said it's solubility is "water to
100 mM".
The mw for it is 162.21. I am thinking they mean that up to 16.22 gms of the substance is soluble in lL of water? They also, in general, recommend
using a 100mM solution of NaOH to help to dissolve amino acids.
Dwarvensilver - 4-11-2016 at 12:48
Well Soma,
I am a noob and definitely not tops in chemistry knowledge ( there is just so much 
).
I came across this web page on molar equivalents that may answer your query.
https://www.tocris.com/technicalSupport.php?Item=molarEquiva...
Cheers,
Dwarvensilver
zed - 4-11-2016 at 12:54
Wouldn't use NaOH without doing some research.
The material you are using, is the Amide of an amino-acid. That amide could be hydrolysed under basic conditions.
Tsjerk - 5-11-2016 at 12:18
Your calculation is correct, if the supplier recommends 100 mM NaOH I don't see a reason not to use it. But maybe make a fresh solution every time you
need it for reasons mentioned by zed.