PCT / AI / SERM

Exemestane

CAS 107868-30-4
Formula C₂₀H₂₄O₂
Half-life 24 hours (oral)

Chemical Identity

CAS Number	`107868-30-4`
IUPAC Name	(8R,9S,10R,13S,14S)-10,13-dimethyl-6-methylidene-7,8,9,11,12,14,15,16-octahydrocyclopenta[a]phenanthrene-3,17(4H)-dione
Molecular Formula	C₂₀H₂₄O₂
Molecular Weight	296.40 g/mol
SMILES	`C[C@]12CC[C@@H]3C(=CC(=O)C=C3[C@@H]1CCC2=O)C=C`
InChIKey	`BFYIZQONLCFLEV-DAELLWKTSA-N`
Melting Point	155-158 °C
Solubility	Freely soluble in DMSO, methanol; practically insoluble in water
Half-life	24 hours (oral)

Pharmacological Profile

Aromatisation	None
Hepatotoxicity	Low

Known trade names

Aromasin
Exemestane Pfizer
Exetrol

External references

PubChem CID 60198
PubMed clinical literature
Wikipedia overview

Data sourced from peer-reviewed pharmacological literature and authoritative chemical databases (PubChem, DrugBank, ChEBI). Provided for identification and research reference only — not medical advice.