In his recent post, Joerg Mueller asked...
>For investigations of potential new antimycotics I'm desperately looking for
>>- Episterol (ergosta-7,24-dien-3-ol)
>- Fecosterol (ergosta-8,24-dien-3-ol)
>- Zymosterol (cholesta-8,24-dien-3-ol)
>- 4,4-dimethylcholesta-8,14,24-trienol
>- 4,4-dimethylzymosterol
>- Ignosterol (4,4-dimethylcholesta-8,14-dienol)
>>I would need approx. 100mg of each substance as reference standards for
>a MS database.
>Who knows where I can obtain these substances (e.g. research groups,
>custom synthesis,....)???
>Thanks a lot!
>
Have you tried ChemWeb (http://www.chemweb.com)? Within ChemWeb are a
number of databases, one of which is "ACD, The Available Chemicals
Directory". The "Substance Search" option is an incredible resource for
finding vendors of obscure chemical compounds. I think they are still
having a free trial period. Give it a try!
Dave Stepp
J. David Stepp, Ph.D. dstepp at variagenics.com
Variagenics, Inc. http://www.variagenics.com
One Kendall Sq., Bldg. 400 Tel: (617) 588-5331
Cambridge, MA 02139 Fax: (617) 588-5397
