4-methyl-4H-pyran-2,6-dicarboxylic acid CAS 23046-94-8
| CAS No. | 23046-94-8 |
| Molecular Formula | C8H8O5 |
| Molecular Weight | 184.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-methyl-4H-pyran-2,6-dicarboxylic acid (CAS 23046-94-8) is a high-purity analytical reference standard with the molecular formula C8H8O5 and a molecular weight of 184.15 g/mol.
The molecular framework of 4-methyl-4H-pyran-2,6-dicarboxylic acid (C8H8O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-methyl-4H-pyran-2,6-dicarboxylic acid 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 | C8H8O5 |
| Molecular Weight | 184.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Recommended Standards
- 4,6-Dimethoxy-5-nitrosopyrimidin-2-amine (CAS 326855-11-2)
- 4-Methyl-6-(methylamino)-5-nitropyrimidin-2(1H)-one (CAS 5177-15-1)
- 4,5-Dimethyl-1H-pyrazole-1,3-dicarboxylic acid (CAS 856343-99-2)
- 3,5-Dihydroxy-4-methoxybenzoic acid (CAS 4319-02-2)
- N-(3,5-dibromophenyl)acetamide (CAS 119430-40-9)
- 5-(Cyclopropylmethoxy)-2-(dimethylamino)phenol (CAS 1243379-72-7)
- 2-Bromo-3-fluorophenyl diethylcarbamate (CAS 863870-75-1)
- Benzyl (2-(4-(trifluoromethyl)-1H-imidazol-1-yl)ethyl)carbamate (CAS 1956382-51-6)
- 3-Methyl-6-(1-phenylethyl)-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (CAS 86927-77-7)
- 4-phenyl-1,4-diazepan-2-one (CAS 46294-68-2)
- 3-Methoxy-4-(1h-pyrrol-1-yl)aniline hydrochloride (CAS 1279219-16-7)
- 3-Dimethylaminobenzoic Acid (CAS 99-64-9)
- Methyl-(8-methyl-imidazo[1,2-a]pyridin-2-ylmethyl)-amine dihydrochloride (CAS 1187931-63-0)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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