8-Methyl-4-oxo-6-(m-tolyl)-1,4-dihydrocinnoline-3-carboxylic acid CAS 36991-83-0
| CAS No. | 36991-83-0 |
| Molecular Formula | C17H14N2O3 |
| Molecular Weight | 294.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 8-Methyl-4-oxo-6-(m-tolyl)-1,4-dihydrocinnoline-3-carboxylic acid.
CATO supplies 8-Methyl-4-oxo-6-(m-tolyl)-1,4-dihydrocinnoline-3-carboxylic acid (CAS 36991-83-0), a certified reference material (molecular formula C17H14N2O3, MW 294.30 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 8-Methyl-4-oxo-6-(m-tolyl)-1,4-dihydrocinnoline-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 294.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 8-Methyl-4-oxo-6-(m-tolyl)-1,4-dihydrocinnoline-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H14N2O3 |
| Molecular Weight | 294.30 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
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Why CATO?
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