(R)-1-((3aR,5S,6aR)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-2-(trityloxy)ethan-1-ol CAS 20720-48-3
| CAS No. | 20720-48-3 |
| Molecular Formula | C28H30O5 |
| Molecular Weight | 446.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-1-((3aR,5S,6aR)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-2-(trityloxy)ethan-1-ol 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.
(R)-1-((3aR,5S,6aR)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-2-(trityloxy)ethan-1-ol (CAS 20720-48-3), molecular formula C28H30O5 and molecular weight 446.53 g/mol, is a CATO reference standard with documented purity and traceability.
(R)-1-((3aR,5S,6aR)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-2-(trityloxy)ethan-1-ol (C28H30O5) contains a steroid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C28H30O5 |
| Molecular Weight | 446.53 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Recommended Standards
- (3aR,4R,5R,6aS)-Hexahydro-2-oxo-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-5-yl Ester [1,1-Biphenyl]-4-carboxylic Acid (CAS 31753-00-1)
- 2,5-Anhydro-1,3-O-isopropylidene-6-O-trityl-D-glucitol (CAS 65758-50-1)
- 4-(5-Amino-2-(pyridin-3-yl)thiazolo[5,4-d]pyrimidin-7-yl)-N-(p-tolyl)piperazine-1-carboxamide (CAS 1245319-54-3)
- 20beta-Dihydrocortisone O-Diacetate (CAS 4420-24-0)
- TG6-129, >98% (HPLC) (CAS 1164464-14-5)
- 2-(4-Bromophenyl)-3h-imidazo[4,5-b]pyridine (CAS 75007-86-2)
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- Methyl (3R,4S)-1-benzyl-4-(2-(((tert-butyldimethylsilyl)oxy)methyl)furo[3,2-b]pyridin-6-yl)pyrrolidine-3-carboxylate (CAS 1189172-05-1)
- Ethyl 5-methoxy-1-oxo-1,2-dihydroisoquinoline-3-carboxylate (CAS 2114311-60-1)
- Peptide-GMF (CAS CATO-CPTD788469)
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