Dexamethasone-d4
Impurity reference standard
- CAS number
- 50-02-2 (Unlabelled)
- InChIKey
- UREBDLICKHMUKA-SOEBWSEYSA-N
- Molecular formula
- C22H25D4FO5
- Molecular weight
- 396.49
- Exact mass
- 396.2250 Da
- Purity
- 95%+
- Storage
- 2℃ ~ 8℃
About Dexamethasone-d4
Dexamethasone-d4 is supplied as an analytical reference standard. It is registered under CAS number 50-02-2.
The compound is characterised by its molecular formula C22H25D4FO5 and a molecular weight of 396.49, with the two-dimensional structure shown above.
Computed from the structure, the compound has a monoisotopic mass of 396.2250 Da, a calculated LogP of 1.90, a topological polar surface area of 94.83 Ų. It presents 3 hydrogen-bond donors and 5 acceptors. The structure carries 9 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)
- 1.90
- Topological polar surface area
- 94.83 Ų
- Hydrogen bond donors
- 3
- Hydrogen bond acceptors
- 5
- Rotatable bonds
- 2
- Heavy atoms
- 28
- Rings
- 4
- Defined stereocentres
- 9
Frequently asked questions
What purity does Dexamethasone-d4 ship at?
Dexamethasone-d4 is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does Dexamethasone-d4 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 Dexamethasone-d4 uniquely identified?
The InChIKey UREBDLICKHMUKA-SOEBWSEYSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for Dexamethasone-d4?
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 Dexamethasone-d4?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should Dexamethasone-d4 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.