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dansyl chloride
Posted: Sun Mar 21, 2010 5:05 pm
by smkh
Hello everyone,
I'm now working to get dansylderivative and I have a problem in dissolving the dansyl chloride itself in Acetone (0.025 g in 25.0 mL Acetone)?
although all refernces talk about its solubility in Acetone
is the used acetone must be dry , and if yes How to get dry acetone?
Posted: Fri Mar 26, 2010 7:01 pm
by samsa
hello you can diluted in acetonitril
sorry for my english
Re: dansyl chloride
Posted: Thu Apr 01, 2010 6:09 pm
by shangyer
Hello everyone,
I'm now working to get dansylderivative and I have a problem in dissolving the dansyl chloride itself in Acetone (0.025 g in 25.0 mL Acetone)?
although all refernces talk about its solubility in Acetone
is the used acetone must be dry , and if yes How to get dry acetone?
It is weird. I have used dansyl chloride for couple of years and never had any issue to dissovle in acetone. Did you use free base one? Because if it is salt, it will not dissolve in acetone
Posted: Wed Apr 14, 2010 5:01 am
by samsa
hello i have the same probleme and when i use acetonitrile it resolve all chromatographic probleme.
Posted: Mon Apr 19, 2010 7:15 pm
by shan820
That's strange. I used to prepare dansyl chloride in acetone at 1mg/mL with no problems, and stored it at -20C. Have you been keeping yours sealed in the freezer?
Posted: Wed Jun 02, 2010 6:44 pm
by samsa
hello sorry for long time there is 2 different dansyl chloride from sigma or fluka you keep the produc from fluka at -20°c and the product from sigma
at +4° and product from flucka is very high purity.
if you want test in acetonitrile and tell me want you think.
bye.
Re: dansyl chloride
Posted: Mon Jul 29, 2013 9:42 am
by sekaha
Dear All
I have the same problem.
How could be found a solution?