7-(((2R,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-3H-phenoxazin-3-one CAS 136565-96-3
| CAS No. | 136565-96-3 |
| Molecular Formula | C18H17NO8 |
| Molecular Weight | 375.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 7-(((2R,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-3H-phenoxazin-3-one (C18H17NO8) is characterized by a flavonoid 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 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).
7-(((2R,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-3H-phenoxazin-3-one (CAS 136565-96-3) is a high-purity analytical reference standard with the molecular formula C18H17NO8 and a molecular weight of 375.33 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-(((2R,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-3H-phenoxazin-3-one 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 | C18H17NO8 |
| Molecular Weight | 375.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 7-(((2R,3S,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-3H-phenoxazin-3-one (CAS 125440-92-8)
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- 1067-97-6 V3I605YM3E Tributylhydroxytin Stannane, (hydroxy)tributyl- Stannane, tributylhydroxy- (8CI)(9CI) Tributyltin hydroxide Stannane, tributylhydroxy- EINECS 213-939-8 NSC 65224 Tin, tributyl-, hydroxide Tin, tributylhydroxy- UNII-V3I605YM3E (CAS 1067-97-6)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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