2-Hydroxy-5-oxo-7-(m-tolyl)-5,6,7,8-tetrahydroquinoline-3-carboxylic acid CAS 945202-24-4
| CAS No. | 945202-24-4 |
| Molecular Formula | C17H15NO4 |
| Molecular Weight | 297.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Hydroxy-5-oxo-7-(m-tolyl)-5,6,7,8-tetrahydroquinoline-3-carboxylic acid (CAS 945202-24-4), molecular formula C17H15NO4 and molecular weight 297.31 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Hydroxy-5-oxo-7-(m-tolyl)-5,6,7,8-tetrahydroquinoline-3-carboxylic acid (C17H15NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 297.31 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Hydroxy-5-oxo-7-(m-tolyl)-5,6,7,8-tetrahydroquinoline-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 | C17H15NO4 |
| Molecular Weight | 297.31 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
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Recommended Standards
- 2-Benzamido-3-(4-methoxyphenyl)acrylic acid (CAS 21542-84-7)
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- 2-Amino-1,4-dimethoxy-3-methylanthracene-9,10-dione (CAS 499106-08-0)
- 3-(1H-Benzo[d][1,2,3]triazol-1-yl)-N'-(1-(furan-2-yl)ethylidene)propanehydrazide (CAS 612047-70-8)
- (R)-Benzyl 2-benzylpiperazine-1-carboxylate hydrochloride (CAS 1217666-92-6)
- 1-(4-(Morpholine-4-carbonyl)phenyl)-3-(naphthalen-1-yl)urea (CAS 354766-83-9)
- Guanosine 5-(tetrahydrogen triphosphate) Sodium Salt (>80%) (CAS 24905-71-3)
- Methyl (2S,4S)-2-((tert-butoxycarbonyl)amino)-4-cyanopentanoate (CAS CATO-C3D-262884)
- (6-Methylpyrazin-2-yl)methyl acetate (CAS 86725-83-9)
- Agomelatine Impurity 26 (CAS 945853-23-6)
- Ethyl 4-(2-(thiomorpholinomethyl)benzoyl)benzoate (CAS 898781-64-1)
- Tert-butyl ((3S,4R)-3-(hydroxymethyl)tetrahydro-2H-pyran-4-yl)carbamate (CAS 2165968-38-5)
- 3-Hydrazinylpyridazine (CAS 40972-16-5)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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