95188-34-4 C16H18O5 Sibiricin W1268 CAS 95188-34-4
| CAS No. | 95188-34-4 |
| Molecular Formula | C16H18O5 |
| Molecular Weight | 290.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 95188-34-4 C16H18O5 Sibiricin W1268 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
95188-34-4 C16H18O5 Sibiricin W1268 (CAS 95188-34-4), molecular formula C16H18O5 and molecular weight 290.31 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 95188-34-4 C16H18O5 Sibiricin W1268 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H18O5 |
| Molecular Weight | 290.31 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
Recommended Standards
- (E)-4-{4-[(Diethylamino)carbonyl]anilino}-4-oxo-2-butenoic acid 3830AF 940531-87-3 C15H18N2O4 (CAS 940531-87-3)
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- (E)-4-{3-[(sec-Butylamino)carbonyl]anilino}-4-oxo-2-butenoic acid 3818AF 940498-87-3 C15H18N2O4 (CAS 940498-87-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com