Look up: hepes

1. HEPES
   (= 4-(2-hydroxyethyl)-1-piperazine-ethane-sulphonic acid) Very commonly used buffer for tissue culture medium. Its pKa of 7.5 makes it ideal for most cell culture work. Since related compounds are molluscicides it may be unsuitable for some invertebrate cultures. One of the series of zwitterionic buffers described by Good.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
2. hepes
   <chemical> 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid. A dipolar ionic buffer. ... Pharmacological action: buffers. ... Chemical name: 1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)- ... (12 Dec 1998) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
3. HEPES
   N-(2-hydroxyethyl)piperazine-N`-ethanesulfonic acid; buffer for pH range 6.8-8.2.
   Found on http://www.dyerlabs.com/glossary/microbi
   
   
4. HEPES
   Type: Term Definitions: 1. 4-(2-Hydroxyethyl)-1-piperazine ethanesulfonic acid; a compound lacking in pharmacologic effects and widely used as a biologic buffer in in vitro experiments.
   Found on http://www.medilexicon.com/medicaldictio
   
   
5. HEPES
   --> `HEPES` (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid ) is a zwitterionic organic chemical buffering agent; one of the twelve Good`s buffers. HEPES is widely used in cell culture, largely because it is better at maintaining physiological pH despite changes in carbon dioxide concentr...
   Found on http://en.wikipedia.org/wiki/HEPES