Chemical Forums
Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: pollypui on April 16, 2013, 01:25:43 PM
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anyone know the pKa of pyroglutamaic acid with reference~
thank you very much!!
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Plenty of people do: http://lmgtfy.com/?q=pyroglutamaic+acid You could find it at the Wikipedia article, or on the vendor MSDS, for example, Sigma-Aldrich
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Plenty of people do: http://lmgtfy.com/?q=pyroglutamaic+acid You could find it at the Wikipedia article, or on the vendor MSDS, for example, Sigma-Aldrich
i try it before many time, but i cant found it out:'( :'( :'(
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The first and third results in my Google search, which I linked to above, contained the information you need.
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The first and third results in my Google search, which I linked to above, contained the information you need.
The first one is wiki, the reference article that i cant find the free version. :-\
this is my final year project, so i must find it out prove my data right~
and the pka of pyroglutamic acid do not show in the sigma MSDS.... :(
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The first pK
a
(-1.76) is Wikipedia is suspicious
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The first pKa
(-1.76) is Wikipedia is suspicious
yes.. so i need the pka with the reference, and i find many hand book.
and none of book have the pKa of pyroglutamaic acid ??? ???
anyone can help me ><
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Is the information on
http://www.hmdb.ca/metabolites/hmdb00267
relevant
that was the 7th GOOGLE item
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The first one is wiki, the reference article that i cant find the free version. :-\
this is my final year project, so i must find it out prove my data right~
and the pka of pyroglutamic acid do not show in the sigma MSDS.... :(
Sorry. But this is silly. If wikipedia isn't a useful reference for you, how is a forum posting acceptable? Will your bibliography or footnote list: personal communication, The Cheimestrie Geeks forums, user: Pee-Kay-Hay God ? That's not a good reference either. You will simply have to search the library for a decent source, or buy one.
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http://link.springer.com/article/10.1007%2Fs10953-005-5121-x?LI=true
Journal of Solution Chemistry
July 2005, Volume 34, Issue 7, pp 853-867
Electrical Conductance and Volumetric Studies in Aqueous Solutions of DL-Pyroglutamic Acid
Zoya Orekhova, Yonit Sambira, Emanuel Manzurola, Alexander Apelblat
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The first one is wiki, the reference article that i cant find the free version. :-\
this is my final year project, so i must find it out prove my data right~
and the pka of pyroglutamic acid do not show in the sigma MSDS.... :(
Sorry. But this is silly. If wikipedia isn't a useful reference for you, how is a forum posting acceptable? Will your bibliography or footnote list: personal communication, The Cheimestrie Geeks forums, user: Pee-Kay-Hay God ? That's not a good reference either. You will simply have to search the library for a decent source, or buy one.
sorry to my impolite..
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In my reference pKa1 of pyroglutamic acid was measured. Moreover, references to previous measurements are given.
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If you're having so much trouble finding this value, why not just measure it yourself?
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In my reference pKa1 of pyroglutamic acid was measured. Moreover, references to previous measurements are given.
thank you very much!! :)
is that mean PCA only have one pka?
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Just look at structural formula