CHEBI:138141 - 17α-hydroxy-C21-steroid

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ChEBI Name 17α-hydroxy-C21-steroid
ChEBI ID CHEBI:138141
ChEBI ASCII Name 17alpha-hydroxy-C21-steroid
Definition Any C21-steroid carrying a hydroxy substituent at the 17α-position. Note that individual examples may have ring substituents at other positions and/or contain double bonds, aromatic A-rings, expanded/contracted rings etc., so the formula and mass may vary from that given for the generic structure.
Stars This entity has been manually annotated by the ChEBI Team.
Submitter Anne Morgat
Supplier Information
Download Molfile XML SDF
Formula C21H36O
Net Charge 0
Average Mass 304.511
Monoisotopic Mass 304.27662
InChI InChI=1S/C21H36O/c1-4-21(22)14-11-18-16-9-8-15-7-5-6-12-19(15,2)17(16)10-13-20(18,21)3/h15-18,22H,4-14H2,1-3H3/t15?,16?,17?,18?,19?,20?,21-/m1/s1
InChIKey JSIVWCLRCGAVHN-ILZKQPLKSA-N
SMILES C1CCCC2C1(C3C(CC2)C4C(CC3)([C@](CC4)(CC)O)C)C
ChEBI Ontology
Outgoing 17α-hydroxy-C21-steroid (CHEBI:138141) is a 17α-hydroxy steroid (CHEBI:35342)
17α-hydroxy-C21-steroid (CHEBI:138141) is a C21-steroid (CHEBI:61313)
Incoming 17α-hydroxypregn-5-ene-3,20-dione (CHEBI:63843) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
17α-hydroxypregnenolone (CHEBI:28750) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
17α-hydroxyprogesterone (CHEBI:17252) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
18-hydroxycortisol (CHEBI:89455) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
18-oxocortisol (CHEBI:89213) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
20β-dihydrocortisol (CHEBI:139311) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
21-deoxycortisol (CHEBI:28697) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
3α,17α-dihydroxy-5α-pregnan-20-one (CHEBI:194477) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
5β-dihydrocortisol (CHEBI:732) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
cortisol (CHEBI:17650) is a 17α-hydroxy-C21-steroid (CHEBI:138141)
Synonym Source
a 17α-hydroxy-C21-steroid UniProt
Manual Xref Database
17a-hydroxy-C21-steroids MetaCyc
View more database links
Last Modified
30 March 2023
General Comment
2017-10-23 The chemical structure shown (which is analogous to those used in KEGG and MetaCyc) is a generic structure devised to represent a common steroid skeleton. Derivatives with ring substituents at other positions as well as those containing additional double bonds, aromatic A-rings, expanded/contracted rings etc. are also included.