7-Fluoro-2-oxo-1,2-dihydroquinoline-3-carbaldehyde CAS 938283-20-6
| CAS No. | 938283-20-6 |
| Molecular Formula | C10H6FNO2 |
| Molecular Weight | 191.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Fluoro-2-oxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 938283-20-6) is a high-purity analytical reference standard with the molecular formula C10H6FNO2 and a molecular weight of 191.16 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 7-Fluoro-2-oxo-1,2-dihydroquinoline-3-carbaldehyde is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 191.16 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.
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 | C10H6FNO2 |
| Molecular Weight | 191.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 6-Fluoroquinoline-4-carboxylic acid (CAS 220844-73-5)
- 7-Fluoroisoquinoline-1-carboxylic acid (CAS 441717-84-6)
- 6-Fluoroisoquinoline-4-carboxylic acid (CAS 2169007-97-8)
- 7-Fluoroisoquinoline-3-carboxylic acid (CAS 480451-07-8)
- tert-Butyl ((6S,12S,15S)-1-amino-1-imino-12-isobutyl-16-methyl-6-((4-nitrophenyl)carbamoyl)-8,11,14-trioxo-2,7,10,13-tetraazaheptadecan-15-yl)carbamate hydrobromide (CAS 102601-23-0)
- 4-Chloro-2-((o-tolylamino)methyl)phenol (CAS 1021059-42-6)
- Palladium, (3,5-dichloro-2,4,6-trifluorophenyl)tris(triphenylphosphine)-, (SP-4-2)-, tetrafluoroborate(1-) (CAS 321601-65-4)
- Tadalafil Impurity 48 (CAS CATO-C4X-108748)
- 3-Chloro-2-methoxybenzyl alcohol (CAS 869088-29-9)
- 5-Bromo-2-fluoro-3-pyridineboronic Acid (CAS 501435-91-2)
- (4S,4'S)-4,4'-Di((S)-sec-butyl)-1,1'-bis(3-(tert-butyl)phenyl)-4,4',5,5'-tetrahydro-1H,1'H-2,2'-biimidazole (CAS 2697181-89-6)
- 3-Chloro-6-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 303996-19-2)
- 4,5-Diamino-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one (CAS 88187-95-5)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
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