4-Amino-7,8-dimethylquinoline-3-carboxylic acid CAS 1234880-97-7
| CAS No. | 1234880-97-7 |
| Molecular Formula | C12H12N2O2 |
| Molecular Weight | 216.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Amino-7,8-dimethylquinoline-3-carboxylic acid (CAS 1234880-97-7) is a high-purity analytical reference standard with the molecular formula C12H12N2O2 and a molecular weight of 216.24 g/mol.
Based on its molecular formula C12H12N2O2, 4-Amino-7,8-dimethylquinoline-3-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 216.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4-Amino-7,8-dimethylquinoline-3-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 | C12H12N2O2 |
| Molecular Weight | 216.24 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 5-Amino-1-(4-methylphenyl)-1H-pyrazole-4-carboxamide (CAS 100061-56-1)
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- Methyl 4-amino-2-methylquinoline-6-carboxylate (CAS 1018135-77-7)
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Recommended Standards
- (S)-2-(pyridin-4-yl)-5-(pyrrolidin-3-yl)-1,3,4-oxadiazole (CAS 1234683-45-4)
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- Trimethobenzamide (CAS 138-56-7)
- 7-Chloro-5-(4-methylbenzyl)-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one (CAS 341967-89-3)
- tert-Butyl 4-(6-aminopyridin-2-yl)piperidine-1-carboxylate (CAS 478366-40-4)
- 6-Fluorochroman-3-one (CAS 944904-05-6)
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