Vote for your favorite mineral in #MinCup25! - Taenite vs. Nontronite
It's a mineral found mostly in the farthest reaches of space vs one so common an exhaustive list of localities is nigh impossible as alloy #taenite faces off against clay #nontronite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Mohamed, Ietidal Eltahir, Choudhary, M. Iqbal, Ali, Shamsher, Anjum, Shazia, Atta-ur-Rahman, (2006) 20(29)-Lupene-3β,28β-diacetate. Acta Crystallographica Section E Structure Reports Online, 62 (4) doi:10.1107/s1600536806008233

Advanced
   -   Only viewable:
Reference TypeJournal (article/letter/editorial)
Title20(29)-Lupene-3β,28β-diacetate
JournalActa Crystallographica Section E Structure Reports Online
AuthorsMohamed, Ietidal EltahirAuthor
Choudhary, M. IqbalAuthor
Ali, ShamsherAuthor
Anjum, ShaziaAuthor
Atta-ur-Rahman, Author
Year2006 (April 1)Volume62
Issue4
PublisherInternational Union of Crystallography (IUCr)
DOIdoi:10.1107/s1600536806008233Search in ResearchGate
Generate Citation Formats
Mindat Ref. ID460718Long-form Identifiermindat:1:5:460718:6
GUID0
Full ReferenceMohamed, Ietidal Eltahir, Choudhary, M. Iqbal, Ali, Shamsher, Anjum, Shazia, Atta-ur-Rahman, (2006) 20(29)-Lupene-3β,28β-diacetate. Acta Crystallographica Section E Structure Reports Online, 62 (4) doi:10.1107/s1600536806008233
Plain TextMohamed, Ietidal Eltahir, Choudhary, M. Iqbal, Ali, Shamsher, Anjum, Shazia, Atta-ur-Rahman, (2006) 20(29)-Lupene-3β,28β-diacetate. Acta Crystallographica Section E Structure Reports Online, 62 (4) doi:10.1107/s1600536806008233
In(2006, April) Acta Crystallographica Section E Structure Reports Online Vol. 62 (4) International Union of Crystallography (IUCr)
Abstract/NotesThe triterpene 20(29)-lupene-3β,28β-diacetate, C34H54O4, was obtained by acetylation of naturally occurring betulin. The cyclopentane ring adopts a twisted envelope conformation and the cyclohexane rings are all in chair conformations. The molecular structure is stabilized only by weak intramolecular C—H...O hydrogen bonds.


See Also

These are possibly similar items as determined by title/reference text matching only.

 
and/or  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 15, 2025 16:44:41
Go to top of page