(-)-(18-Crown-6)-2,3,11,12-tetracarboxylic Acid CAS 73891-15-3
| CAS No. | 73891-15-3 |
| Molecular Formula | C16H24O14 |
| Molecular Weight | 440.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 440.35 g/mol gives (-)-(18-Crown-6)-2,3,11,12-tetracarboxylic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (-)-(18-Crown-6)-2,3,11,12-tetracarboxylic Acid (CAS 73891-15-3), a certified reference material (molecular formula C16H24O14, MW 440.35 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H24O14, (-)-(18-Crown-6)-2,3,11,12-tetracarboxylic Acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 440.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C16H24O14 |
| Molecular Weight | 440.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Related Crown Standards
- (+)-(18-Crown-6)-2,3,11,12-tetracarboxylic Acid (CAS 61696-54-6)
- 30-Crown-6 (1,6,11,16,21,26-Hexaoxacyclotriacontane) (CAS 64001-05-4)
- 15-Crown-4[4-(2,4-Dinitrophenylazo)phenol] (CAS 81238-57-5)
- 18-Crown-5 [4-(2,4-dinitrophenylazo)phenol] (CAS 81238-58-6)
- (+)-(18-Crown-6)-2,3,11,12-tetracarboxamide 57207-22-4 [2R-(2R*,3R*,11R*,12R*)]-N,N,N',N',N'',N'',N''',N'''-Octamethyl-1,4,7,10,13,16-hexaoxacyclooctadecane-2,3,11,12-tetracarboxamide (CAS 57207-22-4)
- [21]Crown-7-ether (CAS 33089-36-0)
- 18-Crown 6-Ether (CAS 17455-13-9)
- 1-Aza-18-crown-6 (CAS 33941-15-0)
Recommended Standards
- 1-((5-Bromothiophen-2-yl)sulfonyl)-3-((furan-2-ylmethyl)sulfonyl)pyrrolidine (CAS 1798675-02-1)
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- 1-(4-Chlorophenyl)-2-((5-(3-chlorophenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)ethan-1-one (CAS 874386-23-9)
- rel-(2R,3R,11R,12R)-1,4,7,10,13,16-Hexaoxacyclooctadecane-2,3,11,12-tetracarboxylic acid (CAS 119719-58-3)
- 2,7-Di-tert-butylpyrene-4,5-dione (CAS 704860-92-4)
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