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Alle Beiträge des Diskussionsthemas "Authentic TXIB"
  
Message 1 in thread
Von:Jens Glastrup (jens.glastrup@natmus.dk)
Betrifft:Authentic TXIB
Newsgroups:sci.techniques.mass-spec
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Datum:2000-12-15 05:50:06 PST
Dear colleaques
Could anyone provide me with a few mg's of a component named TXIB, CAS
#: 74381-40-1
Thank you very much in advance

Jens Glastrup
The National Museum of Denmark
Dept. of Conservation
Brede, Post Box 260
DK 2800 Lyngby
Denmark
Message 2 in thread
Von:Tobias Kind (tk@theo.uoe.ufz.de)
Betrifft:Re: Authentic TXIB
Newsgroups:sci.techniques.mass-spec
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Datum:2000-12-15 11:45:18 PST
Jens Glastrup wrote:

} Dear colleaques
} Could anyone provide me with a few mg's of a component named TXIB, CAS
} #: 74381-40-1
} Thank you very much in advance

Dear Dr. Glastrup,

I wonder where you got this number. TXIB (Kodaflex) is a brand from
Eastman.
And TXIB  is 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate (CAS#:
6846-50-0)

 http://www.eastman.com/Brands/TXIB/OnlinePub.asp

 http://www.eastman.com/Productfiles/Prod0197.htm


If you took this from NIST - maybe you can contact the group of Prof.
Hites (contributor).

http://www.indiana.edu/~hiteslab/


I think - as a multi (million ) ton product TXIB could be  contaminated
with
Propanoic acid, 2-methyl-, 1-(1,1-dimethylethyl)-2-methyl-1,3-propanediyl
ester (CAS#: 74381-40-1).
(And even 2,4,4-trimethyl-1, 3-pentanediol is very rare)
But this is my opinion (not veryfied) and there are many other ways.  But
maybe you can contact Eastman.
(6846-50-0 and the corresponding diols are  also produced by other
companies.)

Witgh kind regards
Tobias Kind
  

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© 2002 Tobias Kind - www.amdis.net - Alle Rechte vorbehalten.