4H-Pyran-2,6-dicarboxylic acid CAS 23047-07-6
| CAS No. | 23047-07-6 |
| Molecular Formula | C7H6O5 |
| Molecular Weight | 170.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4H-Pyran-2,6-dicarboxylic acid (CAS 23047-07-6) is a high-purity analytical reference standard with the molecular formula C7H6O5 and a molecular weight of 170.12 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4H-Pyran-2,6-dicarboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 170.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4H-Pyran-2,6-dicarboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H6O5 |
| Molecular Weight | 170.12 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, water |
| 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 |
Related H Standards
- 25637-16-5 2H-PYRAN, 4-BROMOTETRAHYDRO- 4-BROMOOXACYCLOHEXANE 4-BROMOOXANE 4-BROMOTETRAHYDRO-2H-PYRAN 4-BROMOTETRAHYROPYRAN BC003718 (CAS 25637-16-5)
- 2H-Pyran, tetrahydro-3-(phenylmethyl)- (CAS 60466-73-1)
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- 2H-pyran, 3,6-dihydro-4-(4-methoxyphenyl)- (CAS 914365-66-5)
- 1927-62-4 2H-Pyran,tetrahydro-2-(phenylmethoxy)- CTK4E1072 (CAS 1927-62-4)
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