11,17,21-Trihydroxy-pregn-5-ene-3,20-dione-d CAS 134354-11-3
| CAS No. | 134354-11-3 |
| Molecular Formula | - |
| Molecular Weight | 454.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
11,17,21-Trihydroxy-pregn-5-ene-3,20-dione-d (CAS 134354-11-3) is a high-purity analytical reference standard with the molecular formula C25H34D4O7 and a molecular weight of 454.59 g/mol.
Owing to deuterium isotope labeling, a flavonoid core, a hydroxyl group, an ether linkage, 11,17,21-Trihydroxy-pregn-5-ene-3,20-dione-d is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 454.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 11,17,21-Trihydroxy-pregn-5-ene-3,20-dione-d meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H34D4O7 |
| Molecular Weight | 454.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
Related Trihydroxy Standards
- 11α,17α,21-Trihydroxy-pregn-5-ene-3,20-dione 3,20-Diethylene Ketal (CAS 102030-55-7)
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- 3,4,5-Trihydroxy-6-((5-hydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromen-7-yl)oxy)tetrahydro-2H-pyran-2-carboxylic acid (CAS 38482-76-7)
- (3α,5β,7α,12α,24E)-3,7,12-Trihydroxy-cholest-24-en-26-oic Acid (CAS 85552-38-1)
- 3β,7β,15β-trihydroxy-11-oxo-lanosta-8-en-24→20 lactone (CAS 1694587-15-9)
- 5，7，4’-Trihydroxy-3，6-dimethoxy-3’，5’-diprenylflavone (CAS 1246926-08-8)
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- 3β,7α,12α-Trihydroxy-5β-cholanic Acid Methyl Ester (CAS 28050-54-6)
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