(4R,5R,6S,7R)-7-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-4,5,6,8-tetrahydroxy-2-oxooctanoic acid CAS 129476-66-0
| CAS No. | 129476-66-0 |
| Molecular Formula | C27H33N3O5 |
| Molecular Weight | 479.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4R,5R,6S,7R)-7-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-4,5,6,8-tetrahydroxy-2-oxooctanoic acid (CAS 129476-66-0), a certified reference material (molecular formula C27H33N3O5, MW 479.57 g/mol) for analytical method development and quality control.
The molecular framework of (4R,5R,6S,7R)-7-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-4,5,6,8-tetrahydroxy-2-oxooctanoic acid (C27H33N3O5) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C27H33N3O5 |
| Molecular Weight | 479.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 3 |
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