Erteberel
An organic heterotricyclic compound that is 1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromene substituted by 4-hydroxyphenyl and hydroxy groups at positions 4 and 8, respectively (the 3aS,4R,9bR-stereoisomer). It is an estrogen receptor β agonist and exhibits antineoplastic activity. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 533884-09-2 | ChEBI ↗ |
| Molecular formula | C18H18O3 | ChEBI ↗ |
| Molar mass | 282.339 g/mol | ChEBI ↗ |
| Monoisotopic mass | 282.12559 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:231600 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 282.3 g/mol | PubChem ↗ |
| Exact mass | 282.125594432 Da | PubChem ↗ |
| Computed XLogP | 4 | PubChem ↗ |
| Topological polar surface area (Ų) | 49.7 | PubChem ↗ |
| H-bond donors | 2 | PubChem ↗ |
| H-bond acceptors | 3 | PubChem ↗ |
| Rotatable bonds | 1 | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifiererteberel(3aS,4R,9bR)-4-(4-hydroxyphenyl)-1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromen-8-olXIESSJVMWNJCGZ-VKJFTORMSA-N[H][C@]12CCC[C@@]1([H])c1cc(O)ccc1O[C@@]2([H])c1ccc(O)cc1InChI=1S/C18H18O3/c19-12-6-4-11(5-7-12)18-15-3-1-2-14(15)16-10-13(20)8-9-17(16)21-18/h4-10,14-15,18-20H,1-3H2/t14-,15+,18+/m1/s1Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Mass ↔ amount of substance
Calculated from sourced massUses 282.339 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCOHCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.