A summary of the most common chemical descriptors (InChI Key and SMILES codes) for Tixocortol are summarized together with 3D and 2D structures and relevant physico-chemical properties.

What is the Tixocortol?

The molecule Tixocortol presents a molecular formula of C21H30O4S and its IUPAC name is (8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-17-(2-sulfanylacetyl)-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one.

Tixocortol is a molecule that has been shown to be a potent and selective agonist of the human P2Y13 receptor. It is also an agonist of the rat P2Y13 receptor. Tixocortol has been shown to stimulate release of ATP from human platelets with an EC50 of 0.17 μM..

3D structure

Cartesian coordinates

Geometry of Tixocortol in x, y and z coordinates (Å units) to copy/paste elsewhere. Generated with Open Babel software.

2D drawing


Tixocortol YWDBSCORAARPPF-VWUMJDOOSA-N chemical compound 2D structure molecule svg


Molecule descriptors

IUPAC name(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-17-(2-sulfanylacetyl)-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
InChI codeInChI=1S/C21H30O4S/c1-19-7-5-13(22)9-12(19)3-4-14-15-6-8-21(25,17(24)11-26)20(15,2)10-16(23)18(14)19/h9,14-16,18,23,25-26H,3-8,10-11H2,1-2H3/t14-,15-,16-,18+,19-,20-,21-/m0/s1

Other names (synonyms)

IUPAC nomenclature provides a standardized method for naming chemical compounds. Although this system is widely used in chemistry, many chemical compounds have also other names commonly used in different contexts. These synonyms can come from a variety of sources and are used for a variety of purposes.

One common source of synonyms for chemical compounds is the common or trivial names, assigned on the basis of appearance, properties, or origin of the molecule.

Another source of synonyms are historical or obsolete names employed in the past, however replaced nowadays by more modern or standardized names.

In addition to common and historical names, chemical compounds may also have synonyms that are specific to a particular field or industry.

  • (11beta)-11,17-dihydroxy-21-mercaptopregn-4-ene-3,20-dione
  • (8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-17-(2-sulfanylacetyl)-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
  • 11,17-dihydroxy-10,13-dimethyl-17-(2-sulfanylacetyl)-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
  • 11beta,17-Dihydroxy-21-mercapto-4-pregnen-3,20-dion
  • 11beta,17-dihydroxy-21-sulfanylpregn-4-ene-3,20-dione
  • 11beta,17-dihydroxy-pregna-4-ene-3,20-dione-21-thiol
  • 61951-99-3
  • D08610
  • DB09091
  • PREGN-4-ENE-3,20-DIONE, 11,17-DIHYDROXY-21-MERCAPTO-, (11.BETA.)-
  • Pregn-4-ene-3,20-dione, 11,17-dihydroxy-21-mercapto-, (11beta)-
  • Q7810486
  • Tixocortol
  • Tixocortol (INN)
  • Tixocortolum
  • ZX3KEK657Z

Reference codes for other databases

There exist several different chemical codes commonly used in orded to identify molecules:
  • ZINC5138848
  • DTXSID30895062
  • CHEBI:63560
  • SCHEMBL4983

Physico-Chemical properties

IUPAC name(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-17-(2-sulfanylacetyl)-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
Molecular formulaC21H30O4S
Molecular weight378.525
Melting point (ºC)
Boiling point (ºC)
Density (g/cm3)
Molar refractivity104.30
Topological polar surface area113.4

LogP and topological polar surface area (TPSA) values were estimated using Open Babel software.

The n-octanol/water partition coeficient (Kow) data is applied in toxicology and drug research. Kow values are used, to guess the environmental fate of persistent organic pollutants. High partition coefficients values, tend to accumulate in the fatty tissue of organisms. Molecules with a log(Kow) (or LogP) greater than 5 are considered to bioaccumulate.

TPSA values are the sum of the surface area over all polar atoms or molecules, mainly oxygen and nitrogen, also including hydrogen atoms.

In medicinal chemistry, TPSA is used to assess the ability of a drug to permeabilise cells.

For molecules to penetrate the blood-brain barrier (and act on receptors in the central nervous system), TPSA values below 90 Å2 are required. Thus, molecules with a polar surface area greater than 140 Å2 tend to be poorly permeable to cell membranes.