4-Methylumbelliferyl-β-D-xylopyranoside CAS 6734-33-4
| CAS No. | 6734-33-4 |
| Molecular Formula | C15H16O7 |
| Molecular Weight | 308.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 308.28 g/mol gives 4-Methylumbelliferyl-β-D-xylopyranoside distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Methylumbelliferyl-β-D-xylopyranoside (CAS 6734-33-4), molecular formula C15H16O7 and molecular weight 308.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Methylumbelliferyl-β-D-xylopyranoside (C15H16O7) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 308.28 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).
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 | C15H16O7 |
| Molecular Weight | 308.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Methylumbelliferyl Standards
- 4-Methylumbelliferyl β-D-ribofuranoside (CAS 195385-93-4)
- 4-Methylumbelliferyl α-L-arabinofuranoside (CAS 77471-44-4)
- 4-Methylumbelliferyl α-L-arabinopyranoside (CAS 69414-26-2)
- 4-Methylumbelliferyl phosphate (disodium) (CAS 22919-26-2)
- 4-Methylumbelliferyl α-L-fucopyranoside (CAS 54322-38-2)
- 4-Methylumbelliferyl β-D-fucopyranoside (CAS 55487-93-9)
- 4-Methylumbelliferyl β-L-fucopyranoside (CAS 72601-82-2)
- 4-Methylumbelliferyl heptanoate (CAS 18319-92-1)
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