5-(9H-carbazol-9-yl)isophthalic acid CAS 1800465-14-8
| CAS No. | 1800465-14-8 |
| Molecular Formula | C20H13NO4 |
| Molecular Weight | 331.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(9H-carbazol-9-yl)isophthalic 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.
5-(9H-carbazol-9-yl)isophthalic acid (CAS 1800465-14-8) is a high-purity analytical reference standard with the molecular formula C20H13NO4 and a molecular weight of 331.32 g/mol.
Based on its molecular formula C20H13NO4, 5-(9H-carbazol-9-yl)isophthalic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 331.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C20H13NO4 |
| Molecular Weight | 331.32 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related H Standards
- 4-(9H-Carbazol-9-yl)pyridine-2,6-dicarboxylic acid (CAS 2079886-11-4)
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- 2'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine (CAS 2378356-17-1)
- 4-(9H-Carbazol-9-yl)-N-phenylaniline (CAS 858641-06-2)
- 1-(9H-Carbazol-9-yl)-2-iodoethanone (CAS 43170-45-2)
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- 3-(9H-Carbazol-9-yl)-5-chlorophenylboronic acid (CAS 2121514-63-2)
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