Oxyberberine CAS 549-21-3
| CAS No. | 549-21-3 |
| Molecular Formula | C20H17NO5 |
| Molecular Weight | 351.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Oxyberberine (CAS 549-21-3), a certified reference material (molecular formula C20H17NO5, MW 351.35 g/mol) for analytical method development and quality control.
Oxyberberine (C20H17NO5) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C20H17NO5 |
| Molecular Weight | 351.35 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Nintedanib Impurity 49 (CAS 1168152-07-5)
- 13-Hydroxyberberine Inner Salt (CAS 62595-72-6)
- Nintedanib Impurity 13 (CAS 1253769-13-9)
- Roxadustat Impurity 177 (CAS CATO-C4X-2213177)
- 3-(4-Hydroxy-3,5-dimethylphenyl)acrylic acid (CAS 7733-57-5)
- (4-Ethoxy-3-methylphenyl)(methyl)sulfane (CAS 1378808-10-6)
- 2-(4h-1,2,4-Triazol-4-yl)acetonitrile (CAS 1204193-90-7)
- 4-(2-(Isoquinoline-5-sulfonamido)-3-(4-phenylpiperazin-1-yl)propyl)phenyl isoquinoline-5-sulfonate (CAS 129695-80-3)
- Ethyl 2-[(5-Chloro-2-pyridyl)amino]acetate Hydrochloride (CAS 1956332-71-0)
- 2,6-Difluoro-3,5-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1218789-90-2)
- N-methyl-1-(1-propyl-1,2,3,4-tetrahydroquinolin-6-yl)methanamine oxalate (CAS 1185301-91-0)
- 1-(((1-(1h-Pyrazol-1-yl)propan-2-yl)amino)methyl)cyclohexan-1-ol (CAS 1293109-59-7)
- 252265-33-1 Dichloro(1,4-dioxane-kappaO~1~)hydridoboron DTXSID10584260 (CAS 252265-33-1)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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