4-Oxo-4H-chromene-7-carboxylic acid CAS 102298-12-4
| CAS No. | 102298-12-4 |
| Molecular Formula | C10H6O4 |
| Molecular Weight | 190.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4-Oxo-4H-chromene-7-carboxylic acid (CAS 102298-12-4), a certified reference material (molecular formula C10H6O4, MW 190.15 g/mol) for analytical method development and quality control.
Structurally, 4-Oxo-4H-chromene-7-carboxylic acid (C10H6O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 190.15 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C10H6O4 |
| Molecular Weight | 190.15 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.) | 1986 |
Recommended Standards
- 1-(2,2-Difluoroethyl)-3-methyl-1H-pyrazole-4-carboxylic acid (CAS 1006486-66-3)
- 3-(1,3-Dioxaindan-5-yl)prop-2-ynoic acid (CAS 10231-46-6)
- 1-(difluoromethyl)-3-methyl-1h-pyraZole-5-carbohydrazide (CAS 1006334-36-6)
- 5-(1,1-Difluoroethyl)-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 1024599-62-9)
- 2-(Chloromethyl)-4-nitrobenzo[d]oxazole (CAS 143708-26-3)
- 2,4-Dichloro-5-methylaniline (CAS 17601-75-1)
- Cyclooctanol (CAS 696-71-9)
- 2-Bromo-7-iodo-9,9-dimethyl-9H-fluorene (CAS 319906-45-1)
- 2-(4-Isopropylthiazol-2-yl)quinazolin-4(3H)-one (CAS 923274-28-6)
- Acotiamide Impurity 40 (CAS 5981-37-3)
- (R)-1-(4-Fluorophenyl)ethanamine hydrochloride (CAS 321318-42-7)
- 3-Fluoro-4-tetrahydropyran-2-yloxy-cyclopent-2-en-1-one (CAS 114882-08-5)
- 2',6'-Dichloroacetanilide (CAS 17700-54-8)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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