3-Oxo-3H-benzo[f]chromene-2-carboxylic acid CAS 4361-00-6
| CAS No. | 4361-00-6 |
| Molecular Formula | C14H8O4 |
| Molecular Weight | 240.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Oxo-3H-benzo[f]chromene-2-carboxylic acid (C14H8O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 240.21 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3-Oxo-3H-benzo[f]chromene-2-carboxylic acid (CAS 4361-00-6), molecular formula C14H8O4 and molecular weight 240.21 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Oxo-3H-benzo[f]chromene-2-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 | C14H8O4 |
| Molecular Weight | 240.21 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Recommended Standards
- 3-Methoxy-4-(2-methoxy-2-oxoethoxy)benzoic acid (CAS 94946-79-9)
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- 3,5-Dimethoxy-4-(methoxycarbonyl)benzoic acid (CAS 55687-41-7)
- 4-((3-Hydroxypropyl)amino)-3-nitrobenzoic acid (CAS 306280-77-3)
- 2-Methoxy-d3-pyrazine (CAS 32046-21-2)
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- 2-(4-Fluorocyclohexyl)-2-methylpropanoic acid (CAS 1785043-75-5)
- 2-Methyl-2-(3,4,5-trimethoxyphenyl)propanal (CAS 19589-25-4)
- 6,8-Dibromo-4-hydrazinyl-2-methylquinoline hydrochloride (CAS 1170815-62-9)
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- 3-Chloro-5-phenylpyrazine-2-carbonitrile (CAS 181284-10-6)
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- N-butyl-4-(2-isopropylphenoxy)butan-1-amine (CAS 416889-97-9)
- D-Ala18-Tirzepatide (CAS CATO-CPTD788916)
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