4′-Carboxybenzo-15-crown-5, 98% CAS 56683-55-7
| CAS No. | 56683-55-7 |
| Molecular Formula | C15H20O7 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 312.32 g/mol gives 4′-Carboxybenzo-15-crown-5, 98% distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4′-Carboxybenzo-15-crown-5, 98% (CAS 56683-55-7), molecular formula C15H20O7 and molecular weight 312.32 g/mol, is a CATO reference standard with documented purity and traceability.
4′-Carboxybenzo-15-crown-5, 98% (C15H20O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C15H20O7 |
| Molecular Weight | 312.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Carboxybenzo Standards
Recommended Standards
- 4-[4-(4-methoxyphenoxy)-5-methyl-1h-pyrazol-3-yl]benzene-1,3-diol (CAS 879444-35-6)
- 5-(2-((3,5-Dimethoxyphenyl)amino)phenyl)-1,3,4-oxadiazol-2-amine (CAS 830334-17-3)
- 4-[2-(Anilinocarbonyl)anilino]-4-oxobutanoic acid (CAS 306325-47-3)
- 5-(2-Hydroxybenzoyl)-1-(3-methoxypropyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 731011-89-5)
- Benzyl (S)-((3,3-difluoropiperidin-4-yl)methyl)carbamate (CAS 2227198-54-9)
- (8E,10E)-Dodeca-8,10-dien-1-yl acetate (CAS 53880-51-6)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-5-nitro-4,6-diphenylpyrimidine (CAS 484647-27-0)
- 2-(1-methyl-1H-pyrazol-4-yl)pyridin-3-amine (CAS 1554842-76-0)
- 3-Phenyl-1-(2-(pyridin-4-yl)ethyl)-1H-pyrazol-5(4H)-one (CAS 5517-93-1)
- n-(4-Methoxybutyl)-1-methylpiperidin-4-amine (CAS 1251267-62-5)
- Donepezil Aldehyde Impurity (CAS 22065-85-6)
- Ethyl (2,2-Dimethoxyethyl)carbamate (CAS 71545-60-3)
- 1-(2-Chloroacetyl)-4,5-dihydro-1h-pyrazole-5-carbonitrile (CAS 761414-68-0)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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