5,7,4’-Trimethoxyafzelechin CAS 918428-88-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 918428-88-3 |
| Molecular Formula | C18H20O5 |
| Molecular Weight | 316.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7,4’-Trimethoxyafzelechin (CAS 918428-88-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H20O5. Molecular weight: 316.35 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H20O5 |
| Molecular Weight | 316.35 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Recommended Standards
- 4H-Chromene (CAS 254-03-5)
- 6-(4-Methoxyphenyl)-5-methyl-3-phenylisoxazolo[5,4-b]pyridine (CAS 62096-71-3)
- 4-Fluoro-N-(4-methoxy-7-methylbenzo[d]thiazol-2-yl)benzamide (CAS 897617-91-3)
- 2-METHYL-4-OXO-4H-BENZO[D][1,3]OXAZIN-6-YL ACETATE (CAS 1882-75-3)
- 5-(4-(Methylthio)phenyl)thiophene-2-carboxylic acid (CAS 870703-97-2)
- (S)-2-Amino-N-(2-methylpyridin-3-yl)propanamide (CAS 1567862-81-0)
- Opicapone Impurity 88 (CAS CATO-C4X-240488)
- (2,5-Difluoro-4-formylphenyl)boronic acid (CAS 1228828-19-0)
- 2-(5,7,8,9-Tetrahydro-5-hydroxy-6H-benzocyclohepten-6-ylidene)acetic acid (CAS 520505-01-5)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
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 13829788188 / jacky.chen@cato-chem.com