2,3,6-Trimethylquinoline-4-carboxylic acid dihydrate CAS 1609400-19-2
| CAS No. | 1609400-19-2 |
| Molecular Formula | C13H13NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2,3,6-Trimethylquinoline-4-carboxylic acid dihydrate (C13H13NO2H2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 233.27 g/mol, it falls into the medium-molecular-weight range. 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).
2,3,6-Trimethylquinoline-4-carboxylic acid dihydrate (CAS 1609400-19-2), molecular formula C13H13NO2H2O and molecular weight 233.27 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C13H13NO2 2*H2O |
| Molecular Weight | 233.27 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
Related Trimethylquinoline Standards
- 2,5,7-Trimethylquinoline (CAS 102871-67-0)
- 2,5,8-Trimethylquinoline (CAS 102871-69-2)
- Ethyl 2,5,8-trimethylquinoline-3-carboxylate (CAS 110139-48-5)
- 2,7,8-Trimethylquinoline-4-carboxylic acid dihydrate (CAS 1609406-89-4)
- 2,4,8-Trimethylquinoline (CAS 18441-61-7)
- 2,4,6-Trimethylquinoline (CAS 2243-89-2)
- 2,6,8-Trimethylquinoline (CAS 2243-90-5)
- 2,3,4-Trimethylquinoline (CAS 2437-72-1)
Recommended Standards
- 2-(3-Bromo-benzyl)-thiazole-4-carboxylic acid ethyl ester (CAS 954241-25-9)
- Docosamethyldecasiloxane (CAS 556-70-7)
- 5-Bromo-3-chlorobenzene-1,2-diamine (CAS 16429-44-0)
- 8-Bromo-3-iodo-2-methylimidazo[1,2-a]pyridine (CAS 1379339-53-3)
- Tizanidine Impurity 36 (CAS CATO-C4X-144537)
- (3-Aminophenyl)(azepan-1-yl)methanone (CAS 401646-91-1)
- 5-Bromodihydrouracil (CAS 1193-76-6)
- Methyl 4-(5-fluoro-2-methylphenyl)benzoate (CAS 1820613-36-2)
- 1H-indazole-5-sulfonamide (CAS 1099632-58-2)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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