Crystallography Open Database

Information card for entry 2225311

Preview

Coordinates	2225311.cif
Structure factors	2225311.hkl
Original IUCr paper	HTML
External links	ChemSpider; PubChem

Structure parameters

Common name	24-Methyllanosta-7,25-dien-3-one
Chemical name	17-(5,6-Dimethylhept-6-en-2-yl)-4,4,10,13,14-pentamethyl- 1,5,6,10,11,12,13,15,16,17-decahydro-2<i>H</i>-cyclopenta[α]phenanthren- 3(4<i>H</i>,9<i>H</i>,14<i>H</i>)-one
Formula	C31 H50 O
Calculated formula	C31 H50 O
SMILES	O=C1CC[C@]2([C@H](C1(C)C)CC=C1[C@@H]2CC[C@@]2([C@@]1(CC[C@H]2[C@@H](C)CC[C@@H](C(=C)C)C)C)C)C
Title of publication	24-Methyllanosta-7,25-dien-3-one
Authors of publication	Hussain, Nisar; Habib-ur-Rehman; Parvez, Masood
Journal of publication	Acta Crystallographica Section E
Year of publication	2010
Journal volume	66
Journal issue	3
Pages of publication	o626
a	6.7207 ± 0.0001 Å
b	19.4804 ± 0.0005 Å
c	20.5035 ± 0.0005 Å
α	90°
β	90°
γ	90°
Cell volume	2684.36 ± 0.1 Å³
Cell temperature	173 ± 2 K
Ambient diffraction temperature	173 ± 2 K
Number of distinct elements	3
Space group number	19
Hermann-Mauguin space group symbol	P 21 21 21
Hall space group symbol	P 2ac 2ab
Residual factor for all reflections	0.073
Residual factor for significantly intense reflections	0.055
Weighted residual factors for significantly intense reflections	0.11
Weighted residual factors for all reflections included in the refinement	0.122
Goodness-of-fit parameter for all reflections included in the refinement	1.15
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	Yes

Version history

Revision	Date	Message	Files
301805 (current)	2025-08-19	Add cross-references to PubChem compounds in COD range 2/22 Each referenced PubChem compound corresponds to the full crystal structure.	2225311.cif 2225311.hkl
201978	2017-10-13	cif/2/ Marking COD entries in range 2/22 that are known to be related to ChemSpider entries using the _cod_related_entry data loop.	2225311.cif 2225311.hkl
181174	2016-04-03	hkl/2/22/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/22/53.	2225311.cif 2225311.hkl
176789	2016-02-20	cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/22.	2225311.cif 2225311.hkl
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2225311.cif 2225311.hkl
88064	2013-08-29	Adding _cod_database_fobs_code data item to all COD CIFs that have Fobs deposited and did not have this data item yet.	2225311.cif 2225311.hkl
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2225311.cif 2225311.hkl
26029	2011-09-17	cif/2/ Reverting changes of revision 25271: ( cd cif/2/; svn merge -r25271:25270 . ) The problem was that the reprocessed files from IUCr, although were more complete, "resurrected" data errors that were corrected in the previous recisions. The additional data that have been extracted during the reprocessing will have to be merged without overwriting the existing values in COD files, except some explicit and controlled cases (such as publication titles and chemical names).	2225311.cif 2225311.hkl
25271	2011-09-10	cif/2/ Adding reporocessed IUCr CIFs for the years 1980-2010. The CIFs now contain more complete bibliography, substance names, correctly unfolded text fields (using the CIF line unfolding protocol), explicitely set cell angles, and _cod_data_source_block fields.	2225311.cif 2225311.hkl
1088	2010-04-11	hkl/ Adding Fobs tada for the recent IUCr data deposition.	2225311.cif 2225311.hkl
1086	2010-04-11	cif/2/, cif/7/ Depositing CIFs from Acta-Cryst-C-2010_03/, Acta-Cryst-E-2010_03/ and Chem-Comm-2010_12-16/ processing directories.	2225311.cif