5-bromo-2,3-dihydropyran-4-one CAS 359688-89-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 359688-89-4 |
| Molecular Formula | C5H5BrO2 |
| Molecular Weight | 177.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-bromo-2,3-dihydropyran-4-one (CAS 359688-89-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C5H5BrO2. Molecular weight: 177.00 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C5H5BrO2 |
| Molecular Weight | 177.00 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related bromo Standards
- 5-Bromo-3-methoxypyrazole (CAS 1015779-81-3)
- (3-Bromo-1H-pyrazol-1-yl)methanol (CAS 1039454-62-0)
- 3-Bromo-5,6-dihydropyran-2-one (CAS 104184-64-7)
- 4-Bromo-3-methoxy-1H-pyrazole (CAS 1147011-26-4)
- (2-Bromo-1h-imidazol-4-yl)methanol (CAS 1162674-62-5)
- 2-Bromo-3-hydroxycyclopent-2-en-1-one (CAS 1189352-96-2)
- 4-Bromo-5,6-dihydro-2H-pyran-2-one (CAS 124066-92-8)
- 4-Bromo-3-methyl-2,5-dihydro-1,2-oxazol-5-imine (CAS 1356635-81-8)
Recommended Standards
- 5-(Bromomethyl)furan-2(5H)-one (CAS 78508-87-9)
- 5-Bromo-2-methyl-2,4-dihydro-3H-pyrazol-3-one (CAS 623577-53-7)
- 5-(Bromomethyl)-3-methyl-1,2,4-oxadiazole (CAS 875644-71-6)
- 5-Methyl-N-(3-nitrophenyl)furan-2-carboxamide (CAS 5925-67-7)
- 2-Chloro-N-ethyl-N-(m-tolyl)acetamide (CAS 86491-92-1)
- 5-Iodothiazol-2-amine (CAS 41731-32-2)
- 1-(2-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)ethyl)urea (CAS 338792-95-3)
- Midazolam Impurity 41 (CAS 59468-85-8)
- 1-(3-Chlorophenyl)pentane-1,3-dione (CAS 1040034-67-0)
- Neuropeptide SF (human) (CAS 192387-39-6)
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