3,4-Difluoro-6-methyl-2H-pyran-2-one CAS 75599-88-1
| CAS No. | 75599-88-1 |
| Molecular Formula | C6H4F2O2 |
| Molecular Weight | 146.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Difluoro-6-methyl-2H-pyran-2-one (CAS 75599-88-1), molecular formula C6H4F2O2 and molecular weight 146.09 g/mol, is a CATO reference standard with documented purity and traceability.
3,4-Difluoro-6-methyl-2H-pyran-2-one (C6H4F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 3,4-Difluoro-6-methyl-2H-pyran-2-one 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 | C6H4F2O2 |
| Molecular Weight | 146.09 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | F-containing |
Related Difluoro Standards
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- 2,3-Difluoro-1,4-benzenediol (CAS 124728-90-1)
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- 2,4-Difluoro-6-methoxypyrimidine (CAS 27078-76-8)
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Recommended Standards
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- 2,6-Difluorobenzene-1,4-diol (CAS 84959-65-9)
- 2,5-Difluorobenzene-1,4-diol (CAS 367-35-1)
- 4-(2-Bromophenylamino)-1,1,1-trifluorobut-3-en-2-one (CAS 176722-52-4)
- 2-(2,4-Dichlorophenoxy)-N-{[(4-methoxyphenyl)carbamothioyl]amino}acetamide (CAS 69026-42-2)
- 5-(Indolin-1-yl)-5-oxopentanoic acid (CAS 239135-37-6)
- N-(3-(tert-Butyl)isoxazol-5-yl)-2,4,6-trimethoxybenzamide (CAS 82559-05-5)
- N-(2-(2-fluorophenoxy)acetyl)-N-methylglycine (CAS 1099113-02-6)
- 2-(Aminomethyl)-3-chloro-5-(difluoromethyl)-4-(trifluoromethyl)pyridine (CAS 1807082-99-0)
- Ethyl 2-(3-(4-fluorophenyl)propanoyl)benzoate (CAS 898768-00-8)
- 1-(2,5-Dimethylphenyl)ethan-1-amine hydrochloride (CAS 91251-27-3)
- 1-(1,5-Dimethyl-1h-pyrazol-3-yl)ethan-1-one (CAS 25016-15-3)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
Why CATO?
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