Exemestane-d3
Impurity reference standard
- CAS number
- 107868-30-4 (unlabelled)
- InChIKey
- BFYIZQONLCFLEV-OAXLLPIKSA-N
- Molecular formula
- C20H21D3O2
- Molecular weight
- 299.42
- Exact mass
- 299.1965 Da
- Purity
- 95%+
- Appearance
- White to Pale Green Solid
- Storage
- 2℃-8℃
About Exemestane-d3
Exemestane-d3 is supplied as an analytical reference standard. It is registered under CAS number 107868-30-4.
The compound is characterised by its molecular formula C20H21D3O2 and a molecular weight of 299.42, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 299.1965 Da, a calculated LogP of 4.03, a topological polar surface area of 34.14 Ų. It presents 0 hydrogen-bond donors and 2 acceptors. The structure carries 5 defined stereocentres, which is relevant wherever a stereochemically defined standard is required. These values are commonly used to anticipate chromatographic retention and to plan ionisation conditions during method development.
Each pack ships with a certificate of analysis reporting purity of 95%+ together with the supporting analytical data — HNMR, MS and HPLC or GC traces — so the material can be released straight into your own QC workflow. Recommended storage: 2℃-8℃.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Calculated properties
Derived from the two-dimensional structure above using RDKit. Computed values describe the parent structure and are provided as a reference for method development — they are not measured data.
- LogP (Crippen)
- 4.03
- Topological polar surface area
- 34.14 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 0
- Heavy atoms
- 22
- Rings
- 4
- Defined stereocentres
- 5
Frequently asked questions
What purity does Exemestane-d3 ship at?
Exemestane-d3 is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does Exemestane-d3 come with a certificate of analysis?
Yes. Every pack ships with a certificate of analysis plus the supporting analytical data — HNMR, MS and HPLC or GC traces.
How is Exemestane-d3 uniquely identified?
The InChIKey BFYIZQONLCFLEV-OAXLLPIKSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for Exemestane-d3?
Yes. The two-dimensional structure is drawn on this page from the SMILES record, and the SMILES or a molfile can be supplied on request.
What pack sizes are available for Exemestane-d3?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should Exemestane-d3 be stored?
Recommended storage: 2℃-8℃.
Need this standard, or a related one?
Send the compound name, CAS number or a structure file — we confirm availability, pack size and lead time, usually within one business day.