5-Oxo-1-[(2,3,6,7-tetramethoxy-9-phenanthrenyl)methyl-L-proline Methyl Ester CAS 1203657-51-5
| CAS No. | 1203657-51-5 |
| Molecular Formula | C25H27NO7 |
| Molecular Weight | 453.48 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.
5-Oxo-1-[(2,3,6,7-tetramethoxy-9-phenanthrenyl)methyl-L-proline Methyl Ester (CAS 1203657-51-5), molecular formula C25H27NO7 and molecular weight 453.48 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Oxo-1-[(2,3,6,7-tetramethoxy-9-phenanthrenyl)methyl-L-proline Methyl Ester (C25H27NO7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 453.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C25H27NO7 |
| Molecular Weight | 453.48 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 5- Oxo- 1- [(2, 3, 6, 7- tetramethoxy- 9- phenanthrenyl) methyl] -L-proline (CAS 87227-00-7)
- 2,3,6,7-Tetramethoxy-9,9'-spirobi[fluorene] (CAS 821785-24-4)
- 5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one (CAS 6965-36-2)
- 3,3'-(2,3,5,6-Tetramethoxy-1,4-phenylene)bis(1H-indole) (CAS 287117-66-2)
- 2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 1801236-36-1)
- 2,3,7,8-Tetramethoxy-2,3,7,8-tetramethyldecahydrobenzo[1,2-b:4,5-b']bis([1,4]dioxine)-5,10-diol (CAS 176798-27-9)
- 5,5',6,6'-Tetramethoxy-3,3,3',3'-tetramethyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene] (CAS 6307-95-5)
- 1,1,3,3-Tetramethoxy-1,3-bis(3,3,3-trifluoropropyl)disiloxane (CAS 109961-44-6)
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