3h-Benzo[f]chromene-2-carboxylic acid CAS 659745-57-0
| CAS No. | 659745-57-0 |
| Molecular Formula | C14H10O3 |
| Molecular Weight | 226.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3h-Benzo[f]chromene-2-carboxylic 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.
3h-Benzo[f]chromene-2-carboxylic acid (CAS 659745-57-0) is a high-purity analytical reference standard with the molecular formula C14H10O3 and a molecular weight of 226.23 g/mol.
3h-Benzo[f]chromene-2-carboxylic acid (C14H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C14H10O3 |
| Molecular Weight | 226.23 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related h Standards
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- 5-(1-(4-(Tert-butyl)phenoxy)ethyl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 861241-14-7)
- (S)-2-Amino-N-(3,4-dichlorobenzyl)-N-ethylpropanamide (CAS 1353995-33-1)
- 2-(3-Methoxyphenyl)-2-(methylamino)-cyclohexanone Hydrochloride (CAS 1781829-56-8)
- 1-{[(2S)-1-(tert-Butoxycarbonyl)pyrrolidinyl]methyl}-1H-1,2,3-triazole-4-carboxylic acid (CAS 1269504-36-0)
- 2-((Pyridin-3-ylmethyl)carbamoyl)benzoic acid (CAS 100872-69-3)
- 1-[2-Chloro-5-methyl-4-(methylsulfonyl)phenyl]-piperidine-3-carboxylic acid (CAS 942474-28-4)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com