6,7-Dihydroxy-2-oxo-2H-1-benzopyran-3-carboxylic acid CAS 84738-35-2
| CAS No. | 84738-35-2 |
| Molecular Formula | C10H6O6 |
| Molecular Weight | 222.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 6,7-Dihydroxy-2-oxo-2H-1-benzopyran-3-carboxylic acid (C10H6O6) 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).
6,7-Dihydroxy-2-oxo-2H-1-benzopyran-3-carboxylic acid (CAS 84738-35-2) is a high-purity analytical reference standard with the molecular formula C10H6O6 and a molecular weight of 222.15 g/mol.
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), 6,7-Dihydroxy-2-oxo-2H-1-benzopyran-3-carboxylic 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 | C10H6O6 |
| Molecular Weight | 222.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
Related Dihydroxy Standards
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- 5-Bromo-6-methyl-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-2-carbaldehyde (CAS 1227269-08-0)
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- 2-Thia-8-azaspiro[5.5]Undecane 2,2-dioxide hydrochloride (CAS 2306268-69-7)
- (R)-2-Amino-3-(2-fluorophenyl)-2-methylpropanoic acid (CAS 1336086-97-5)
- Peptide YY (3-36) (human) (CAS 123583-37-9)
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