2H-1-Benzopyran-7-ol, 3-[4-(acetyloxy)phenyl]-, 7-acetate CAS 81267-66-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 81267-66-5 |
| Molecular Formula | C19H16O5 |
| Molecular Weight | 324.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2H-1-Benzopyran-7-ol, 3-[4-(acetyloxy)phenyl]-, 7-acetate (CAS 81267-66-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C19H16O5. Molecular weight: 324.33 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C19H16O5 |
| Molecular Weight | 324.33 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related H Standards
- 2H-1-Benzopyran-2-one,8-[1-(acetyloxy)-3- methyl-2-oxobutyl]-7-methoxy-,(+)- 95360-22-8 (CAS 95360-22-8)
- 22934-99-2 4H-1-Benzopyran-4-one,5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-6-methoxy- (CAS 22934-99-2)
- 3122-87-0 4H-1-Benzopyran-4-one, 5-hydroxy-2-(4-hydroxyphenyl)-7-methoxy-6,8-dimethyl- 5-Hydroxy-2-(4-hydroxyphenyl)-7-methoxy-6,8-dimethyl-4H-1-benzopyran-4-one (CAS 3122-87-0)
- 2H-1-Benzopyran-2-one, 6-[(1R,2S)-2,3-dihydroxy-1-methoxy-3-methylbutyl]-7-methoxy- (CAS 425370-70-3)
- 92519-95-4 4H-1-Benzopyran-4-one, 2-(2,6-dihydroxyphenyl)-3,5,7-trihydroxy- 2-(2,6-Dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one Viscidulin I (CAS 92519-95-4)
- 6563-66-2 4H-1-Benzopyran-4-one, 5,6,7-trihydroxy-2-(4-methoxyphenyl)- DTXSID50457727 (CAS 6563-66-2)
- 4569-98-6 4H-1-Benzopyran-4-one, 7-hydroxy-3-(4-hydroxyphenyl)-5-methoxy- 7-Hydroxy-3-(4-hydroxyphenyl)-5-methoxy-4H-1-benzopyran-4-one Isoprunetin 5--O-Methylgenistein (CAS 4569-98-6)
- 2H-1-Benzopyran-2-one,5,7-dimethoxy-8-[(3-methyl-2-buten-1-yl)oxy]- 96917-26-9 (CAS 96917-26-9)
Recommended Standards
- 2-Amino-4-(4-ethoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile (CAS 315246-05-0)
- 3-(2-(3,4-Dimethoxyphenyl)imidazo[1,2-a]pyridin-3-yl)acrylic acid (CAS 727652-22-4)
- 2-Amino-4-(3,4-dimethoxyphenyl)-7-hydroxy-4H-chromene-3-carbonitrile (CAS 312266-56-1)
- (S)-2-Amino-3-(pyrimidin-5-yl)propanoic acid (CAS 309296-08-0)
- (1S,2R)-1-((3,5-Di-tert-butyl-2-hydroxybenzylidene)amino)-2,3-dihydro-1H-inden-2-ol (CAS 212378-89-7)
- Tocopherol Impurity 4 (CAS 3808-26-2)
- 5-(But-3-en-1-yl)-3-trityl-4,5-dihydroisoxazole (CAS 111379-53-4)
- (3-(Piperidin-1-ylmethyl)phenyl)(2-(trifluoromethyl)phenyl)methanone (CAS 898793-34-5)
- 2-(((6-Oxo-2-propylheptyl)oxy)carbonyl)benzoic Acid (CAS 1373125-92-8)
- Fibrinogen-Binding Inhibitor Peptide (CAS 89105-94-2)
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