2-((2R,4R,5S)-2-(benzyloxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)isoindoline-1,3-dione CAS 80035-32-1
| CAS No. | 80035-32-1 |
| Molecular Formula | C21H21NO7 |
| Molecular Weight | 399.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-((2R,4R,5S)-2-(benzyloxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)isoindoline-1,3-dione (C21H21NO7) contains a flavonoid core, an amide group, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-((2R,4R,5S)-2-(benzyloxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)isoindoline-1,3-dione (CAS 80035-32-1), molecular formula C21H21NO7 and molecular weight 399.39 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C21H21NO7 |
| Molecular Weight | 399.39 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2S,3S)-2,3-Bis(benzoyloxy)-3-[(propan-2-yl)carbamoyl]propanoic acid (CAS 2227199-14-4)
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- 1-(sec-Butyl)-N-((1-methyl-1H-pyrrol-2-yl)methyl)-1H-pyrazol-3-amine hydrochloride (CAS 1856093-74-7)
- C-telopeptide (CAS 162929-64-8)
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