Helioxanthin CAS 18920-47-3
| CAS No. | 18920-47-3 |
| Molecular Formula | C20H12O6 |
| Molecular Weight | 348.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Helioxanthin is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Helioxanthin (CAS 18920-47-3) is a high-purity analytical reference standard with the molecular formula C20H12O6 and a molecular weight of 348.31 g/mol.
Structurally, Helioxanthin (C20H12O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 348.31 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 | C20H12O6 |
| Molecular Weight | 348.31 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Helioxanthin Standards
Recommended Standards
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- 3,6-Dimethoxy-2-nitrobenzoic acid, 97% (CAS 50472-09-8)
- 4-(Difluoromethyl)nicotinic acid (CAS 1211590-78-1)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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