206444-58-8 3 inverted exclamation mark ,6 inverted exclamation marka-Dimethacryloxyspirobenzo[c]-furan[1,9 inverted exclamation mark ]xanthen-3-one Dimethacryloyloxyfluorescein Fluorescein O,O inverted exclamation marka-dimethacrylate CAS 206444-58-8
| CAS No. | 206444-58-8 |
| Molecular Formula | C28H38O7 |
| Molecular Weight | 486.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 206444-58-8 3 inverted exclamation mark ,6 inverted exclamation marka-Dimethacryloxyspirobenzo[c]-furan[1,9 inverted exclamation mark ]xanthen-3-one Dimethacryloyloxyfluorescein Fluorescein O,O inverted exclamation marka-dimethacrylate.
206444-58-8 3 inverted exclamation mark ,6 inverted exclamation marka-Dimethacryloxyspirobenzo[c]-furan[1,9 inverted exclamation mark ]xanthen-3-one Dimethacryloyloxyfluorescein Fluorescein O,O inverted exclamation marka-dimethacrylate (CAS 206444-58-8) is a high-purity analytical reference standard with the molecular formula C28H38O7 and a molecular weight of 486.60 g/mol.
Structurally, 206444-58-8 3 inverted exclamation mark ,6 inverted exclamation marka-Dimethacryloxyspirobenzo[c]-furan[1,9 inverted exclamation mark ]xanthen-3-one Dimethacryloyloxyfluorescein Fluorescein O,O inverted exclamation marka-dimethacrylate (C28H38O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 486.60 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C28H38O7 |
| Molecular Weight | 486.60 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
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