4,4-Difluorodihydro-2H-pyran-2,6(3H)-dione CAS 2309460-79-3
| CAS No. | 2309460-79-3 |
| Molecular Formula | C5H4F2O3 |
| Molecular Weight | 150.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 4,4-Difluorodihydro-2H-pyran-2,6(3H)-dione is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 150.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4,4-Difluorodihydro-2H-pyran-2,6(3H)-dione (CAS 2309460-79-3) is a high-purity analytical reference standard with the molecular formula C5H4F2O3 and a molecular weight of 150.08 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4,4-Difluorodihydro-2H-pyran-2,6(3H)-dione 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.
Physical & Chemical Properties
| Molecular Formula | C5H4F2O3 |
| Molecular Weight | 150.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | F-containing |
Related Difluorodihydro Standards
Recommended Standards
- Selenomorpholine (CAS 200629-55-6)
- 2,3-Difluorofumaramide (CAS 669-83-0)
- Trifluoromethanesulfonic Acid (CAS 1493-13-6)
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- Octahydrothianthrene-4a,9a(2H,5aH)-diol (CAS 68134-79-2)
- 32896-98-3 2-Methyl-1-(2-oxo-2-phenyl-ethyl)-pyridinium bromide MFCD00184785 (CAS 32896-98-3)
- 2-(4-Chlorophenoxy)-N-((4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl)methyl)acetamide (CAS 1091074-20-2)
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- Riociguat Impurity 25 (CAS CATO-C4X-174925)
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Why CATO?
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